[공지사항] Korean Translation Progress

# Korean Translation Progress

### 번역해주시는 분

@SeonHyungJo 
@BKJang
@dididy  

## **새로운 번역가분들은 확인해주세요!!**

현재 이슈의 아래를 확인하고 작업시작 또는 작업요청을 해주세요.

1. 아래의 번역 리스트를 확인합니다.
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3, Contributor가 되었다면 번역하고 싶거나 관심있는 내용에 자신을 할당합니다. (:heavy_check_mark:**한번에 할당 최대 3개**)
4.  Repo를 Clone받고, 자신이 Check한 항목의 번역 작업 후 PR 해주세요.
    - Commit Message 양식 => `:bookmark: <YOUR_NAME< / Translate / <MESSAGE>`
5. **[꼭 맞춤법 한번씩 확인해주세요.](http://speller.cs.pusan.ac.kr/)**
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## 번역된 내용을 PR로 올리기
 
번역된 내용은 자신있게 PR을 날려주세요. 그 전에 아래의 내용을 읽어 주세요

- PR 대상이 되는 Repo는 SeonHyungJo/reactjs-interview-questions-korean 입니다.
- 해당 Repo 선택시 TEMPLATE가 나오면 확인을 하고 체크를 합니다.
- PR시 **확인요청** label을 달아줍니다.
- PR을 날려줍니다.

## 번역 순서

1. ~React Core~
2. ~React Router~ 
3. ~React Redux~
4. ~React supported libraries and Integration~
5. Miscellaneous 
6. 이외

위의 순서에 맞게 번역을 진행합니다.

## 번역 리스트

번역은 순서대로 진행을 안하셔도 됩니다. 자신이 자신있거나 하고싶은 항목하세요

| No. | Questions | Completed | Translator |
| --- | --------- | ---- | ----| 
|   | **Core React** | - | - | 
|1  | [What is React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-react) | :ballot_box_with_check: | @SeonHyungJo | 
|2  | [What are the major features of React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-major-features-of-react) | :ballot_box_with_check: | @SeonHyungJo | 
|3  | [What is JSX?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-jsx) | :ballot_box_with_check: | @SeonHyungJo | 
|4  | [What is the difference between Element and Component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-element-and-component) | :ballot_box_with_check: | @SeonHyungJo | 
|5  | [How to create components in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-create-components-in-react) | :ballot_box_with_check: | @SeonHyungJo | 
|6  | [When to use a Class Component over a Function Component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#when-to-use-a-class-component-over-a-function-component)  | :ballot_box_with_check: | @BKJang | 
|7  | [What are Pure Components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-pure-components)  | :ballot_box_with_check:  | @BKJang | 
|8  | [What is state in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-state-in-react)  | :ballot_box_with_check:  | @BKJang | 
|9  | [What are props in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-props-in-react)  | :ballot_box_with_check:  | @BKJang | 
|10 | [What is the difference between state and props?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-state-and-props)  | :ballot_box_with_check:  | @BKJang | 
|11 | [Why should we not update the state directly?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-should-we-not-update-the-state-directly) | :ballot_box_with_check: | @SeonHyungJo | 
|12 | [What is the purpose of callback function as an argument of setState()?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-callback-function-as-an-argument-of-setstate) | :ballot_box_with_check: | @SeonHyungJo | 
|13 | [What is the difference between HTML and React event handling?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-html-and-react-event-handling) | :ballot_box_with_check: | @SeonHyungJo | 
|14 | [How to bind methods or event handlers in JSX callbacks?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-bind-methods-or-event-handlers-in-jsx-callbacks) | :ballot_box_with_check: | @SeonHyungJo | 
|15 | [How to pass a parameter to an event handler or callback?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-pass-a-parameter-to-an-event-handler-or-callback) | :ballot_box_with_check: | @SeonHyungJo | 
|16 | [What are synthetic events in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-synthetic-events-in-react) | :ballot_box_with_check: | @SeonHyungJo | 
|17 | [What is inline conditional expressions?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-inline-conditional-expressions) | :ballot_box_with_check: | @SeonHyungJo |  
|18 | [What are "key" props and what is the benefit of using them in arrays of elements?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-key-props-and-what-is-the-benefit-of-using-them-in-arrays-of-elements) | :ballot_box_with_check: | @SeonHyungJo | 
|19 | [What is the use of refs?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-use-of-refs) | :ballot_box_with_check: | @BKJang |  
|20 | [How to create refs?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-create-refs) | :ballot_box_with_check: | @BKJang |  
|21 | [What are forward refs?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-forward-refs) | :ballot_box_with_check: | @BKJang |  
|22 | [Which is preferred option with in callback refs and findDOMNode()?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#which-is-preferred-option-with-in-callback-refs-and-finddomnode) |  :ballot_box_with_check: | @SeonHyungJo | 
|23 | [Why are String Refs legacy?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-are-string-refs-legacy) |  :ballot_box_with_check:  | @SeonHyungJo | 
|24 | [What is Virtual DOM?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-virtual-dom) | :ballot_box_with_check: | @SeonHyungJo | 
|25 | [How Virtual DOM works?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-virtual-dom-works) | :ballot_box_with_check: | @SeonHyungJo | 
|26 | [What is the difference between Shadow DOM and Virtual DOM?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-shadow-dom-and-virtual-dom) | :ballot_box_with_check: | @SeonHyungJo | 
|27 | [What is React Fiber?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-react-fiber) | :ballot_box_with_check:  | @SeonHyungJo | 
|28 | [What is the main goal of React Fiber?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-main-goal-of-react-fiber) | :ballot_box_with_check:  | @SeonHyungJo | 
|29 | [What are controlled components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-controlled-components) |  :ballot_box_with_check:    | @SeonHyungJo | 
|30 | [What are uncontrolled components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-uncontrolled-components) |   :ballot_box_with_check:  | @SeonHyungJo | 
|31 | [What is the difference between createElement and cloneElement?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-createelement-and-cloneelement) |   :ballot_box_with_check:  | @SeonHyungJo | 
|32 | [What is Lifting State Up in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-lifting-state-up-in-react) |  :ballot_box_with_check: | @SeonHyungJo | 
|33 | [What are the different phases of component lifecycle?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-different-phases-of-component-lifecycle) |  :ballot_box_with_check: | @SeonHyungJo | 
|34 | [What are the lifecycle methods of React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-lifecycle-methods-of-react) |   :ballot_box_with_check:  | @SeonHyungJo | 
|35 | [What are Higher-Order components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-higher-order-components) |   :ballot_box_with_check:  | @SeonHyungJo | 
|36 | [How to create props proxy for HOC component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-create-props-proxy-for-hoc-component) |   :ballot_box_with_check:  | @SeonHyungJo | 
|37 | [What is context?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-context) |   :ballot_box_with_check:  | @SeonHyungJo | 
|38 | [What is children prop?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-children-prop) |  :ballot_box_with_check:  |@BKJang | 
|39 | [How to write comments in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-write-comments-in-react) |  :ballot_box_with_check:  |@BKJang | 
|40 | [What is the purpose of using super constructor with props argument?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-using-super-constructor-with-props-argument) |  :ballot_box_with_check:  |@BKJang | 
|41 | [What is reconciliation?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-reconciliation) | :ballot_box_with_check: | @SeonHyungJo | 
|42 | [How to set state with a dynamic key name?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-set-state-with-a-dynamic-key-name) | :ballot_box_with_check: | @SeonHyungJo | 
|43 | [What would be the common mistake of function being called every time the component renders?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-would-be-the-common-mistake-of-function-being-called-every-time-the-component-renders) | :ballot_box_with_check: | @SeonHyungJo | 
|44 | [Why is it necessary to capitalize component names?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-is-it-necessary-to-capitalize-component-names) | :ballot_box_with_check: | @SeonHyungJo | 
|45 | [Why React uses className over class attribute?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-react-uses-classname-over-class-attribute) | :ballot_box_with_check: | @SeonHyungJo | 
|46 | [What are fragments?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-fragments) | :ballot_box_with_check: | @SeonHyungJo | 
|47 | [Why fragments are better than container divs?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-fragments-are-better-than-container-divs) | :ballot_box_with_check: | @SeonHyungJo | 
|48 | [What are portals in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-portals-in-react) | :ballot_box_with_check: | @SeonHyungJo | 
|49 | [What are stateless components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-stateless-components) | :ballot_box_with_check: | @SeonHyungJo | 
|50 | [What are stateful components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-stateful-components) | :ballot_box_with_check: | @SeonHyungJo | 
|51 | [How to apply validation on props in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-apply-validation-on-props-in-react) | :ballot_box_with_check: | @SeonHyungJo | 
|52 | [What are the advantages of React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-advantages-of-react) |  :ballot_box_with_check: | @SeonHyungJo | 
|53 | [What are the limitations of React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-limitations-of-react) | :ballot_box_with_check: | @SeonHyungJo | 
|54 | [What are error boundaries in React v16](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-error-boundaries-in-react-v16) | :ballot_box_with_check: | @SeonHyungJo | 
|55 | [How error boundaries handled in React v15?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-error-boundaries-handled-in-react-v15) | :ballot_box_with_check: | @SeonHyungJo |
|56 | [What are the recommended ways for static type checking?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-recommended-ways-for-static-type-checking) | :ballot_box_with_check: | @SeonHyungJo |
|57 | [What is the use of react-dom package?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-use-of-react-dom-package) | :ballot_box_with_check: | @SeonHyungJo |
|58 | [What is the purpose of render method of react-dom?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-render-method-of-react-dom) | :ballot_box_with_check: | @SeonHyungJo |
|59 | [What is ReactDOMServer?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-reactdomserver) | :ballot_box_with_check: | @SeonHyungJo |
|60 | [How to use InnerHtml in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-use-innerhtml-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|61 | [How to use styles in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-use-styles-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|62 | [How events are different in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-events-are-different-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|63 | [What will happen if you use setState in constructor?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-will-happen-if-you-use-setstate-in-constructor) | :ballot_box_with_check: | @SeonHyungJo |
|64 | [What is the impact of indexes as keys?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-impact-of-indexes-as-keys) | :ballot_box_with_check: | @SeonHyungJo |
|65 | [Is it good to use setState() in componentWillMount() method?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-it-good-to-use-setstate-in-componentwillmount-method) | :ballot_box_with_check: | @SeonHyungJo |
|66 | [What will happen if you use props in initial state?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-will-happen-if-you-use-props-in-initial-state) | :ballot_box_with_check: | @SeonHyungJo |
|67 | [How do you conditionally render components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-conditionally-render-components)| :ballot_box_with_check: | @SeonHyungJo |
|68 | [Why we need to be careful when spreading props on DOM elements??](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-we-need-to-be-careful-when-spreading-props-on-dom-elements) | :ballot_box_with_check: | @SeonHyungJo |
|69 | [How you use decorators in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-you-use-decorators-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|70 | [How do you memoize a component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-memoize-a-component) | :ballot_box_with_check: | @SeonHyungJo |
|71 | [How you implement Server-Side Rendering or SSR?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-you-implement-server-side-rendering-or-ssr) | :ballot_box_with_check: | @SeonHyungJo |
|72 | [How to enable production mode in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-enable-production-mode-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|73 | [What is CRA and its benefits?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-cra-and-its-benefits) | :ballot_box_with_check: | @SeonHyungJo |
|74 | [What is the lifecycle methods order in mounting?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-lifecycle-methods-order-in-mounting) | :ballot_box_with_check: | @SeonHyungJo |
|75 | [What are the lifecycle methods going to be deprecated in React v16?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-lifecycle-methods-going-to-be-deprecated-in-react-v16) | :ballot_box_with_check: | @SeonHyungJo |
|76 | [What is the purpose of getDerivedStateFromProps() lifecycle method?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-getderivedstatefromprops-lifecycle-method) | :ballot_box_with_check: | @SeonHyungJo |
|77 | [What is the purpose of getSnapshotBeforeUpdate() lifecycle method?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-getsnapshotbeforeupdate-lifecycle-method) | :ballot_box_with_check: | @SeonHyungJo |
|78 | [What is the difference between createElement() and cloneElement() methods?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-createelement-and-cloneelement-methods) | :ballot_box_with_check: | @SeonHyungJo |
|79 | [What is the recommended way for naming components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-recommended-way-for-naming-components) | :ballot_box_with_check: | @SeonHyungJo |
|80 | [What is the recommended ordering of methods in component class?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-recommended-ordering-of-methods-in-component-class) | :ballot_box_with_check: | @SeonHyungJo |
|81 | [What is a switching component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-a-switching-component) | :ballot_box_with_check: | @SeonHyungJo |
|82 | [Why we need to pass a function to setState()?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-we-need-to-pass-a-function-to-setstate) | :ballot_box_with_check: | @SeonHyungJo |
|83 | [What is strict mode in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-strict-mode-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|84 | [What are React Mixins?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-react-mixins) | :ballot_box_with_check: | @SeonHyungJo |
|85 | [Why is isMounted() an anti-pattern and what is the proper solution?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-is-ismounted-an-anti-pattern-and-what-is-the-proper-solution) | :ballot_box_with_check: | @SeonHyungJo |
|86 | [What are the Pointer Events supported in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-pointer-events-supported-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|87 | [Why should component names start with capital letter?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-should-component-names-start-with-capital-letter) | :ballot_box_with_check: | @SeonHyungJo |
|88 | [Are custom DOM attributes supported in React v16?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#are-custom-dom-attributes-supported-in-react-v16) | :ballot_box_with_check: | @SeonHyungJo |
|89 | [What is the difference between constructor and getInitialState?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-constructor-and-getinitialstate) | :ballot_box_with_check: | @SeonHyungJo |
|90 | [Can you force a component to re-render without calling setState?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#can-you-force-a-component-to-re-render-without-calling-setstate) | :ballot_box_with_check: | @SeonHyungJo |
|91 | [What is the difference between super() and super(props) in React using ES6 classes?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-super-and-superprops-in-react-using-es6-classes) | :ballot_box_with_check: | @SeonHyungJo |
|92 | [How to loop inside JSX?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-loop-inside-jsx) | :ballot_box_with_check: | @SeonHyungJo |
|93 | [How do you access props in attribute quotes?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-access-props-in-attribute-quotes) | :ballot_box_with_check: | @SeonHyungJo |
|94 | [What is React PropType array with shape?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-react-proptype-array-with-shape) | :ballot_box_with_check: | @SeonHyungJo |
|95 | [How conditionally apply class attributes?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-conditionally-apply-class-attributes) | :ballot_box_with_check: | @SeonHyungJo |
|96 | [What is the difference between React and ReactDOM?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-react-and-reactdom) | :ballot_box_with_check: | @SeonHyungJo |
|97 | [Why ReactDOM is separated from React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-reactdom-is-separated-from-react) | :ballot_box_with_check: | @SeonHyungJo |
|98 | [How to use React label element?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-use-react-label-element) | :ballot_box_with_check: | @SeonHyungJo |
|99 | [How to combine multiple inline style objects?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-combine-multiple-inline-style-objects) | :ballot_box_with_check: | @SeonHyungJo |
|100| [How to re-render the view when the browser is resized?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-re-render-the-view-when-the-browser-is-resized) | :ballot_box_with_check: | @SeonHyungJo |
|101| [What is the difference between setState and replaceState methods?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-setstate-and-replacestate-methods) | :ballot_box_with_check: | @SeonHyungJo |
|102| [How to listen to state changes?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-listen-to-state-changes) | :ballot_box_with_check: | @SeonHyungJo |
|103| [What is the recommended approach of removing an array element in react state?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-recommended-approach-of-removing-an-array-element-in-react-state) | :ballot_box_with_check: | @SeonHyungJo |
|104| [Is it possible to use React without rendering HTML?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-it-possible-to-use-react-without-rendering-html) | :ballot_box_with_check: | @SeonHyungJo |
|105| [How to pretty print JSON with React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-pretty-print-json-with-react) | :ballot_box_with_check: | @SeonHyungJo |
|106| [Why you can't update props in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-you-cant-update-props-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|107| [How to focus an input element on page load?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-focus-an-input-element-on-page-load) | :ballot_box_with_check: | @SeonHyungJo |
|108| [What are the possible ways of updating objects in state?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-possible-ways-of-updating-objects-in-state) | :ballot_box_with_check: | @SeonHyungJo |
|109| [Why function is preferred over object for setState?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-function-is-preferred-over-object-for-setstate) | :ballot_box_with_check: | @SeonHyungJo |
|110| [How can we find the version of React at runtime in the browser?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-can-we-find-the-version-of-react-at-runtime-in-the-browser) | :ballot_box_with_check: | @SeonHyungJo |
|111| [What are the approaches to include polyfills in your create-react-app?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-approaches-to-include-polyfills-in-your-create-react-app) | :ballot_box_with_check: | @SeonHyungJo |
|112| [How to use https instead of http in create-react-app?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-use-https-instead-of-http-in-create-react-app) | :ballot_box_with_check: | @SeonHyungJo |
|113| [How to avoid using relative path imports in create-react-app?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-avoid-using-relative-path-imports-in-create-react-app) | :ballot_box_with_check: | @SeonHyungJo |
|114| [How to add Google Analytics for react-router?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-add-google-analytics-for-react-router) | :ballot_box_with_check: | @SeonHyungJo |
|115| [How to update a component every second?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-update-a-component-every-second) | :ballot_box_with_check: | @SeonHyungJo |
|116| [How do you apply vendor prefixes to inline styles in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-apply-vendor-prefixes-to-inline-styles-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|117| [How to import and export components using react and ES6?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-import-and-export-components-using-react-and-es6) | :ballot_box_with_check: | @SeonHyungJo |
|118| [Why React component names must begin with a capital letter?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-react-component-names-must-begin-with-a-capital-letter) | :ballot_box_with_check: | @SeonHyungJo |
|119| [Why is a component constructor called only once?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-is-a-component-constructor-called-only-once) | :ballot_box_with_check: | @SeonHyungJo |
|120| [How to define constants in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-define-constants-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|121| [How to programmatically trigger click event in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-programmatically-trigger-click-event-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|122| [Is it possible to use async/await in plain React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-it-possible-to-use-asyncawait-in-plain-react) | :ballot_box_with_check: | @SeonHyungJo |
|123| [What are the common folder structures for React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-common-folder-structures-for-react) | :ballot_box_with_check: | @SeonHyungJo |
|124| [What are the popular packages for animation?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-popular-packages-for-animation) | :ballot_box_with_check: | @SeonHyungJo |
|125| [What is the benefit of styles modules?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-benefit-of-styles-modules) | :ballot_box_with_check: | @SeonHyungJo |
|126| [What are the popular React-specific linters?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-popular-react-specific-linters) | :ballot_box_with_check: | @SeonHyungJo |
|127| [How to make AJAX call and In which component lifecycle methods should I make an AJAX call?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-make-ajax-call-and-in-which-component-lifecycle-methods-should-i-make-an-ajax-call) | :ballot_box_with_check: | @SeonHyungJo |
|128| [What are render props?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-render-props) | :ballot_box_with_check: | @SeonHyungJo |
|   | **React Router** |
|129| [What is React Router?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-react-router) | :ballot_box_with_check: | @SeonHyungJo |
|130| [How React Router is different from history library?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-react-router-is-different-from-history-library) | :ballot_box_with_check: | @SeonHyungJo |
|131| [What are the \<Router> components of React Router v4?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-router-components-of-react-router-v4) | :ballot_box_with_check: | @SeonHyungJo |
|132| [What is the purpose of push and replace methods of history?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-push-and-replace-methods-of-history) | :ballot_box_with_check: | @SeonHyungJo |
|133| [How do you programmatically navigate using React router v4?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-programmatically-navigate-using-react-router-v4) | :ballot_box_with_check: | @SeonHyungJo |
|134| [How to get query parameters in React Router v4](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-get-query-parameters-in-react-router-v4) | :ballot_box_with_check: | @SeonHyungJo |
|135| [Why you get "Router may have only one child element" warning?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-you-get-router-may-have-only-one-child-element-warning) | :ballot_box_with_check: | @SeonHyungJo |
|136| [How to pass params to history.push method in React Router v4?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-pass-params-to-historypush-method-in-react-router-v4) | :ballot_box_with_check: | @SeonHyungJo |
|137| [How to implement default or NotFound page?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-implement-default-or-notfound-page) | :ballot_box_with_check: | @SeonHyungJo |
|138| [How to get history on React Router v4?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-get-history-on-react-router-v4) | :ballot_box_with_check: | @SeonHyungJo |
|139| [How to perform automatic redirect after login?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-perform-automatic-redirect-after-login) | :ballot_box_with_check: | @SeonHyungJo |
|   | **React Internationalization** |
|140| [What is React-Intl?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-react-intl) |
|141| [What are the main features of React Intl?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-main-features-of-react-intl) |
|142| [What are the two ways of formatting in React Intl?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-two-ways-of-formatting-in-react-intl) |
|143| [How to use FormattedMessage as placeholder using React Intl?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-use-formattedmessage-as-placeholder-using-react-intl) |
|144| [How to access current locale with React Intl](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-access-current-locale-with-react-intl) |
|145| [How to format date using React Intl?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-format-date-using-react-intl) |
|   | **React Testing** |
|146| [What is Shallow Renderer in React testing?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-shallow-renderer-in-react-testing) |
|147| [What is TestRenderer package in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-testrenderer-package-in-react) |
|148| [What is the purpose of ReactTestUtils package?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-reacttestutils-package) |
|149| [What is Jest?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-jest) |
|150| [What are the advantages of Jest over Jasmine?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-advantages-of-jest-over-jasmine) |
|151| [Give a simple example of Jest test case](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#give-a-simple-example-of-jest-test-case) |
|   | **React Redux** |
|152| [What is Flux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-flux) | :ballot_box_with_check: | @SeonHyungJo |
|153| [What is Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-redux) | :ballot_box_with_check: | @SeonHyungJo |
|154| [What are the core principles of Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-core-principles-of-redux) | :ballot_box_with_check: | @SeonHyungJo |
|155| [What are the downsides of Redux compared to Flux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-downsides-of-redux-compared-to-flux) | :ballot_box_with_check: | @SeonHyungJo |
|156| [What is the difference between mapStateToProps() and mapDispatchToProps()?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-mapstatetoprops-and-mapdispatchtoprops) | :ballot_box_with_check: | @SeonHyungJo |
|157| [Can I dispatch an action in reducer?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#can-i-dispatch-an-action-in-reducer) | :ballot_box_with_check: | @SeonHyungJo |
|158| [How to access Redux store outside a component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-access-redux-store-outside-a-component) | :ballot_box_with_check: | @SeonHyungJo |
|159| [What are the drawbacks of MVW pattern](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-drawbacks-of-mvw-pattern) | :ballot_box_with_check: | @SeonHyungJo |
|160| [Are there any similarities between Redux and RxJS?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#are-there-any-similarities-between-redux-and-rxjs) | :ballot_box_with_check: | @SeonHyungJo |
|161| [How to dispatch an action on load?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-dispatch-an-action-on-load) | :ballot_box_with_check: | @SeonHyungJo |
|162| [How to use connect from React Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-use-connect-from-react-redux) | :ballot_box_with_check: | @SeonHyungJo |
|163| [How to reset state in Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-reset-state-in-redux) | :ballot_box_with_check: | @SeonHyungJo |
|164| [Whats the purpose of at symbol in the redux connect decorator?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#whats-the-purpose-of-at-symbol-in-the-redux-connect-decorator) | :ballot_box_with_check: | @SeonHyungJo |
|165| [What is the difference between React context and React Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-react-context-and-react-redux) | :ballot_box_with_check: | @SeonHyungJo |
|166| [Why are Redux state functions called reducers?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-are-redux-state-functions-called-reducers) | :ballot_box_with_check: | @SeonHyungJo |
|167| [How to make AJAX request in Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-make-ajax-request-in-redux) | :ballot_box_with_check: | @SeonHyungJo |
|168| [Should I keep all component's state in Redux store?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#should-i-keep-all-components-state-in-redux-store) | :ballot_box_with_check: | @SeonHyungJo |
|169| [What is the proper way to access Redux store?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-proper-way-to-access-redux-store) | :ballot_box_with_check: | @SeonHyungJo |
|170| [What is the difference between component and container in React Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-component-and-container-in-react-redux) | :ballot_box_with_check: | @SeonHyungJo |
|171| [What is the purpose of the constants in Redux? ](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-the-constants-in-redux) | :ballot_box_with_check: | @SeonHyungJo |
|172| [What are the different ways to write mapDispatchToProps()?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-different-ways-to-write-mapdispatchtoprops) | :ballot_box_with_check: | @SeonHyungJo |
|173| [What is the use of the ownProps parameter in mapStateToProps() and mapDispatchToProps()?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-use-of-the-ownprops-parameter-in-mapstatetoprops-and-mapdispatchtoprops) | :ballot_box_with_check: | @SeonHyungJo |
|174| [How to structure Redux top level directories?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-structure-redux-top-level-directories) | :ballot_box_with_check: | @SeonHyungJo |
|175| [What is redux-saga?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-redux-saga) | :ballot_box_with_check: | @SeonHyungJo |
|176| [What is the mental model of redux-saga?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-mental-model-of-redux-saga) | :ballot_box_with_check: | @SeonHyungJo |
|177| [What are the differences between call and put in redux-saga](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-differences-between-call-and-put-in-redux-saga) | :ballot_box_with_check: | @SeonHyungJo |
|178| [What is Redux Thunk?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-redux-thunk) | :ballot_box_with_check:  | @SeonHyungJo |
|179| [What are the differences between redux-saga and redux-thunk](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-differences-between-redux-saga-and-redux-thunk) | :ballot_box_with_check: | @SeonHyungJo |
|180| [What is Redux DevTools?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-redux-devtools) | :ballot_box_with_check: | @SeonHyungJo |
|181| [What are the features of Redux DevTools?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-features-of-redux-devtools) | :ballot_box_with_check: | @SeonHyungJo |
|182| [What are Redux selectors and Why to use them?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-redux-selectors-and-why-to-use-them) | :ballot_box_with_check: | @SeonHyungJo |
|183| [What is Redux Form?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-redux-form) | :ballot_box_with_check: | @SeonHyungJo |
|184| [What are the main features of Redux Form?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-main-features-of-redux-form) | :ballot_box_with_check: | @SeonHyungJo |
|185| [How to add multiple middlewares to Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-add-multiple-middlewares-to-redux) | :ballot_box_with_check: | @SeonHyungJo |
|186| [How to set initial state in Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-set-initial-state-in-redux) | :ballot_box_with_check: | @SeonHyungJo |
|187| [How Relay is different from Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-relay-is-different-from-redux) | :ballot_box_with_check: | @SeonHyungJo |
|   | **React Native** |
|188| [What is the difference between React Native and React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-react-native-and-react) |
|189| [How to test React Native apps?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-test-react-native-apps) |
|190| [How to do logging in React Native?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-do-logging-in-react-native) |
|191| [How to debug your React Native?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-debug-your-react-native) |
|   | **React supported libraries and Integration** |
|192| [What is reselect and how it works?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-reselect-and-how-it-works) | :ballot_box_with_check: | @SeonHyungJo |
|193| [What is Flow?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-flow) | :ballot_box_with_check: | @SeonHyungJo |
|194| [What is the difference between Flow and PropTypes?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-flow-and-proptypes) | :ballot_box_with_check: | @SeonHyungJo |
|195| [How to use font-awesome icons in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-use-font-awesome-icons-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|196| [What is React Dev Tools?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-react-dev-tools) | :ballot_box_with_check: | @SeonHyungJo |
|197| [Why is DevTools not loading in Chrome for local files?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-is-devtools-not-loading-in-chrome-for-local-files) | :ballot_box_with_check: | @SeonHyungJo |
|198| [How to use Polymer in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-use-polymer-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|199| [What are the advantages of React over Vue.js?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-advantages-of-react-over-vuejs) | :ballot_box_with_check: | @SeonHyungJo |
|200| [What is the difference between React and Angular?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-react-and-angular) | :ballot_box_with_check: | @SeonHyungJo |
|201| [Why React tab is not showing up in DevTools?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-react-tab-is-not-showing-up-in-devtools) | :ballot_box_with_check: | @SeonHyungJo |
|202| [What are styled components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-styled-components) | :ballot_box_with_check: | @SeonHyungJo |
|203| [Give an example of Styled Components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#give-an-example-of-styled-components) | :ballot_box_with_check: | @SeonHyungJo |
|204| [What is Relay?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-relay) | :ballot_box_with_check: | @SeonHyungJo |
|205| [How to use TypeScript in create-react-app application?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-use-typescript-in-create-react-app-application) | :ballot_box_with_check: | @SeonHyungJo |
|   | **Miscellaneous** |
|206| [What are the main features of reselect library?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-main-features-of-reselect-library) | :ballot_box_with_check: | @SeonHyungJo |
|207| [Give an example of reselect usage?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#give-an-example-of-reselect-usage) | :ballot_box_with_check: | @SeonHyungJo |
|208| [What is an action in Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-an-action-in-redux) |  :ballot_box_with_check: | @SeonHyungJo |
|209| [Does the statics object work with ES6 classes in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#does-the-statics-object-work-with-es6-classes-in-react) | :ballot_box_with_check: | @SeonHyungJo |
|210| [Can Redux only be used with React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#can-redux-only-be-used-with-react) | :ballot_box_with_check: | @SeonHyungJo |
|211| [Do you need to have a particular build tool to use Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#do-you-need-to-have-a-particular-build-tool-to-use-redux) | :ballot_box_with_check: | @SeonHyungJo |
|212| [How Redux Form initialValues get updated from state?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-redux-form-initialvalues-get-updated-from-state) | :ballot_box_with_check: | @SeonHyungJo |
|213| [How React PropTypes allow different type for one prop?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-react-proptypes-allow-different-types-for-one-prop) | :ballot_box_with_check: | @SeonHyungJo |
|214| [Can I import an SVG file as react component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#can-i-import-an-svg-file-as-react-component) | :ballot_box_with_check: | @SeonHyungJo |
|215| [Why are inline ref callbacks or functions not recommended?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-are-inline-ref-callbacks-or-functions-not-recommended)| :ballot_box_with_check: | @SeonHyungJo |
|216| [What is render hijacking in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-render-hijacking-in-react)| :ballot_box_with_check: | @SeonHyungJo |
|217| [What are HOC factory implementations?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-hoc-factory-implementations)| :ballot_box_with_check: | @SeonHyungJo |
|218| [How to pass numbers to React component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-pass-numbers-to-react-component)| :ballot_box_with_check: | @SeonHyungJo |
|219| [Do I need to keep all my state into Redux? Should I ever use react internal state?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#do-i-need-to-keep-all-my-state-into-redux-should-i-ever-use-react-internal-state)| :ballot_box_with_check: | @SeonHyungJo |
|220| [What is the purpose of registerServiceWorker in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-registerserviceworker-in-react)| :ballot_box_with_check: | @SeonHyungJo |
|221| [What is React memo function?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-react-memo-function)| :ballot_box_with_check: | @SeonHyungJo |
|222| [What is React lazy function?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-react-lazy-function)| :ballot_box_with_check: | @SeonHyungJo |
|223| [How to prevent unnecessary updates using setState?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-prevent-unnecessary-updates-using-setstate)| :ballot_box_with_check: | @SeonHyungJo |
|224| [How do you render Array, Strings and Numbers in React 16 Version?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-render-array-strings-and-numbers-in-react-16-version)| :ballot_box_with_check: | @SeonHyungJo |
|225| [How to use class field declarations syntax in React classes?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-use-class-field-declarations-syntax-in-react-classes)| :ballot_box_with_check: | @SeonHyungJo |
|226| [What are hooks?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-hooks)| :ballot_box_with_check: | @SeonHyungJo |
|227| [What are the rules needs to follow for hooks?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-rules-needs-to-follow-for-hooks)| :ballot_box_with_check: | @SeonHyungJo |
|228| [How to ensure hooks followed the rules in your project?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-ensure-hooks-followed-the-rules-in-your-project)| :ballot_box_with_check: | @SeonHyungJo |
|229| [What are the differences between Flux and Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-differences-between-flux-and-redux)| :ballot_box_with_check: | @SeonHyungJo |
|230| [What are the benefits of React Router V4?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-benefits-of-react-router-v4)| :ballot_box_with_check: | @SeonHyungJo |
|231| [Can you describe about componentDidCatch lifecycle method signature?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#can-you-describe-about-componentdidcatch-lifecycle-method-signature)| :ballot_box_with_check: | @SeonHyungJo |
|232| [In which scenarios error boundaries do not catch errors?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#in-which-scenarios-error-boundaries-do-not-catch-errors)| :ballot_box_with_check: | @SeonHyungJo |
|233| [Why do not you need error boundaries for event handlers?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-do-not-you-need-error-boundaries-for-event0-handlers)| :ballot_box_with_check: | @SeonHyungJo |
|234| [What is the difference between try cath block and error boundaries?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-try-catch-block-and-error-boundaries)| :ballot_box_with_check: | @SeonHyungJo |
|235| [What is the behavior of uncaught errors in react 16?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-behavior-of-uncaught-errors-in-react-16)| :ballot_box_with_check: | @SeonHyungJo |
|236| [What is the proper placement for error boundaries?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-proper-placement-for-error-boundaries)| :ballot_box_with_check: | @SeonHyungJo |
|237| [What is the benefit of component stack trace from error boundary?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-benefit-of-component-stack-trace-from-error-boundary)| :ballot_box_with_check: | @SeonHyungJo |
|238| [What is the required method to be defined for a class component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-required-method-to-be-defined-for-a-class-component)| :ballot_box_with_check: | @SeonHyungJo |
|239| [What are the possible return types of render method?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-possible-return-types-of-render-method)| :ballot_box_with_check: | @SeonHyungJo |
|240| [What is the main purpose of constructor?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-main-purpose-of-constructor)| :ballot_box_with_check: | @SeonHyungJo |
|241| [Is it mandatory to define constructor for React component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-it-mandatory-to-define-constructor-for-react-component)| :ballot_box_with_check: | @SeonHyungJo |
|242| [What are default props?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-default-props)| :ballot_box_with_check: | @SeonHyungJo |
|243| [Why should not call setState in componentWillUnmount?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-should-not-call-setstate-in-componentwillunmount)| :ballot_box_with_check: | @SeonHyungJo |
|244| [What is the purpose of getDerivedStateFromError?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-getderivedstatefromerror)| :ballot_box_with_check: | @SeonHyungJo |
|245| [What is the methods order when component re-rendered?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-methods-order-when-component-re-rendered)| :ballot_box_with_check: | @SeonHyungJo |
|246| [What are the methods invoked during error handling?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-methods-invoked-during-error-handling)| :ballot_box_with_check: | @SeonHyungJo |
|247| [What is the purpose of displayName class property?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-displayname-class-property)| :ballot_box_with_check: | @SeonHyungJo |
|248| [What is the browser support for react applications?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-browser-support-for-react-applications)| :ballot_box_with_check: | @SeonHyungJo |
|249| [What is the purpose of unmountComponentAtNode method?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-unmountcomponentatNode-method)| :ballot_box_with_check: | @SeonHyungJo |
|250| [What is code-splitting?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-code-splitting)| :ballot_box_with_check: | @SeonHyungJo |
|251| [What is the benefit of strict mode?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-benefit-of-strict-mode)| :ballot_box_with_check: | @SeonHyungJo |
|252| [What are Keyed Fragments?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-keyed-fragments)| :ballot_box_with_check: | @SeonHyungJo |
|253| [Is it React support all HTML attributes?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-it-react-support-all-html-attributes)| :ballot_box_with_check: | @SeonHyungJo |
|254| [What are the limitations with HOCs?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-limitations-with-hocs)| :ballot_box_with_check: | @SeonHyungJo |
|255| [How to debug forwardRefs in DevTools?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-debug-forwardrefs-in-devtools)| :ballot_box_with_check: | @SeonHyungJo |
|256| [When component props defaults to true?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#when-component-props-defaults-to-true)| :ballot_box_with_check: | @SeonHyungJo |
|257| [What is NextJS and major features of it?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-nextjs-and-major-features-of-it)| :ballot_box_with_check: | @SeonHyungJo |
|258| [How do you pass an event handler to a component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-pass-an-event-handler-to-a-component)| :ballot_box_with_check: | @SeonHyungJo |
|259| [Is it good to use arrow functions in render methods?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-it-good-to-use-arrow-functions-in-render-methods)| :ballot_box_with_check: | @SeonHyungJo |
|260| [How to prevent a function from being called multiple times?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-prevent-a-function-from-being-called-multiple-times)| :ballot_box_with_check: | @SeonHyungJo |
|261| [How JSX prevents Injection Attacks?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-jsx-prevents-injection-attacks)| :ballot_box_with_check: | @SeonHyungJo |
|262| [How do you update rendered elements?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-update-rendered-elements)| :ballot_box_with_check: | @SeonHyungJo |
|263| [How do you say that props are read only?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-say-that-props-are-read-only)| :ballot_box_with_check: | @SeonHyungJo |
|264| [How do you say that state updates are merged?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-say-that-state-updates-are-merged)| :ballot_box_with_check: | @SeonHyungJo |
|265| [How do you pass arguments to an event handler?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-pass-arguments-to-an-event-handler)| :ballot_box_with_check: | @SeonHyungJo |
|266| [How to prevent component from rendering?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-prevent-component-from-rendering)| :ballot_box_with_check: | @SeonHyungJo |
|267| [What are the conditions to safely use the index as a key?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#What-are-the-conditions-to-safely-use-the-index-as-a-key)| :ballot_box_with_check: | @SeonHyungJo |
|268| [Is it keys should be globally unique?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-it-keys-should-be-globally-unique)| :ballot_box_with_check: | @SeonHyungJo |
|269| [What is the popular choice for form handling?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-popular-choice-for-form-handling)| :ballot_box_with_check: | @SeonHyungJo |
|270| [What are the advantages of formik over redux form library?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-advantages-of-formik-over-redux-form-library)| :ballot_box_with_check: | @SeonHyungJo |
|271| [Why do you not required to use inheritance?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-do-you-not-required-to-use-inheritance)| :ballot_box_with_check: | @SeonHyungJo |
|272| [Can I use web components in react application?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#can-i-use-web-components-in-react-application)| :ballot_box_with_check: | @SeonHyungJo |
|273| [What is dynamic import?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-dynamic-import)| :ballot_box_with_check: | @SeonHyungJo |
|274| [What are loadable components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-loadable-components)| :ballot_box_with_check: | @SeonHyungJo |
|275| [What is suspense component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-suspense-component)| :ballot_box_with_check: | @SeonHyungJo |
|276| [What is route based code splitting?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-route-based-code-splitting)| :ballot_box_with_check: | @SeonHyungJo |
|277| [Give an example on How to use context?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#give-an-example-on-how-to-use-context)| :ballot_box_with_check: | @SeonHyungJo |
|278| [What is the purpose of default value in context?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-default-value-in-context)| :ballot_box_with_check: | @SeonHyungJo |
|279| [How do you use contextType?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-use-contexttype)| :ballot_box_with_check: | @SeonHyungJo |
|280| [What is a consumer?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-a-consumer)| :ballot_box_with_check: | @SeonHyungJo |
|281| [How do you solve performance corner cases while using context?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-solve-performance-corner-cases-while-using-context)| :ballot_box_with_check: | @SeonHyungJo |
|282| [What is the purpose of forward ref in HOCs?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-forward-ref-in-hocs)| :ballot_box_with_check: | @SeonHyungJo |
|283| [Is it ref argument available for all functions or class components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-it-ref-argument-available-for-all-functions-or-class-components)| :ballot_box_with_check: | @SeonHyungJo |
|284| [Why do you need additional care for component libraries while using forward refs?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-do-you-need-additional-care-for-component-libraries-while-using-forward-refs)| :ballot_box_with_check: | @SeonHyungJo |
|285| [How to create react class components without ES6?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-create-react-class-components-without-es6)| :ballot_box_with_check: | @SeonHyungJo |
|286| [Is it possible to use react without JSX?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-it-possible-to-use-react-without-jsx)| :ballot_box_with_check: | @SeonHyungJo |
|287| [What is diffing algorithm?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-diffing-algorithm)| :ballot_box_with_check: | @SeonHyungJo |
|288| [What are the rules covered by diffing algorithm?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-rules-covered-by-diffing-algorithm)| :ballot_box_with_check: | @SeonHyungJo |
|289| [When do you need to use refs?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#when-do-you-need-to-use-refs)| :ballot_box_with_check: | @SeonHyungJo |
|290| [Is it prop must be named as render for render props?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-it-prop-must-be-named-as-render-for-render-props)| :ballot_box_with_check: | @SeonHyungJo |
|291| [What are the problems of using render props with pure components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-problems-of-using-render-props-with-pure-components)| :ballot_box_with_check: | @SeonHyungJo |
|292| [How do you create HOC using render props?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-create-hoc-using-render-props)| :ballot_box_with_check: | @SeonHyungJo |
|293| [What is windowing technique?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-windowing-technique)| :ballot_box_with_check: | @SeonHyungJo |
|294| [How do you print falsy values in JSX?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-print-falsy-values-in-jsx)| :ballot_box_with_check: | @SeonHyungJo |
|295| [What is the typical use case of portals?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-typical-use-case-of-portals?)| :ballot_box_with_check: | @SeonHyungJo |
|296| [How do you set default value for uncontrolled component?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-set-default-value-for-uncontrolled-component)| :ballot_box_with_check: | @SeonHyungJo |
|297| [What is your favorite React stack?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-your-favorite-react-stack)| :ballot_box_with_check: | @SeonHyungJo |
|298| [What is the difference between Real DOM and Virtual DOM?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-real-dom-and-virtual-dom)| :ballot_box_with_check: | @SeonHyungJo |
|299| [How to add a bootstrap for a react application?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-add-a-bootstrap-for-a-react-application)| :ballot_box_with_check: | @SeonHyungJo |
|300| [Can you list down top websites or applications using react as front end framework?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#can-you-list-down-top-websites-or-applications-using-react-as-front-end-framework)| :ballot_box_with_check: | @SeonHyungJo |
|301| [Is it recommended to use CSS In JS technique in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-it-recommended-to-use-css-in-js-technique-in-react)| :ballot_box_with_check: | @SeonHyungJo |
|302| [Do I need to rewrite all my class components with hooks?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#do-i-need-to-rewrite-all-my-class-components-with-hooks)| :ballot_box_with_check: | @SeonHyungJo |
|303| [How to fetch data with React Hooks?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-to-fetch-data-with-react-hooks)| :ballot_box_with_check: | @SeonHyungJo |
|304| [Is Hooks cover all use cases for classes?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-hooks-cover-all-use-cases-for-classes)| :ballot_box_with_check: | @SeonHyungJo |
|305| [What is the stable release for hooks support?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-stable-release-for-hooks-support)| :ballot_box_with_check: | @SeonHyungJo |
|306| [Why do we use square brackets in useState?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#why-do-we-use-square-brackets-in-usestate)| :ballot_box_with_check: | @SeonHyungJo |
|307| [What are the sources used for introducing hooks?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-sources-used-for-introducing-hooks)| :ballot_box_with_check: | @SeonHyungJo |
|308| [How do you access imperative API of web components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-access-imperative-api-of-web-components)| :ballot_box_with_check: | @SeonHyungJo |
|309| [What is formik?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-formik)| :ballot_box_with_check: | @SeonHyungJo |
|310| [What are typical middleware choices for handling asynchronous calls in Redux?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-typical-middleware-choices-for-handling-asynchronous-calls-in-redux)| :ballot_box_with_check: | @SeonHyungJo |
|311| [Is browsers understand JSX code?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#is-browsers-understand-jsx-code)|  :ballot_box_with_check: | @SeonHyungJo |
|312| [Describe about data flow in react?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#describe-about-data-flow-in-react)|  :ballot_box_with_check: | @SeonHyungJo |
|313| [What is react scripts?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-react-scripts)|  :ballot_box_with_check: | @SeonHyungJo |
|314| [What are the features of create react app?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-features-of-create-react-app)|  :ballot_box_with_check: | @SeonHyungJo |
|315| [What is the purpose of renderToNodeStream method?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-rendertonodestream-method)|  :ballot_box_with_check: | @SeonHyungJo |
|316| [What is MobX?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-mobx)|  :ballot_box_with_check: | @SeonHyungJo |
|317| [What are the differences between Redux and MobX?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-differences-between-redux-and-mobx)|  :ballot_box_with_check: | @SeonHyungJo |
|318| [Should I learn ES6 before learning ReactJS?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#should-i-learn-es6-before-learning-reactjs)|  :ballot_box_with_check: | @SeonHyungJo |
|319| [What is Concurrent Rendering?](#what-is-concurrent-rendering)|  :ballot_box_with_check: | @SeonHyungJo |
|320| [What is the difference between async mode and concurrent mode?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-async-mode-and-concurrent-mode)|  :ballot_box_with_check: | @SeonHyungJo |
|321| [Can I use javascript urls in react16.9?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#can-i-use-javascript-urls-in-react16.9)| :ballot_box_with_check: | @SeonHyungJo |
|322| [What is the purpose of eslint plugin for hooks?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-purpose-of-eslint-plugin-for-hooks)| :ballot_box_with_check: | @SeonHyungJo |
|323| [What is the difference between Imperative and Declarative in React?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-is-the-difference-between-imperative-and-declarative-in-react)| :ballot_box_with_check: | @SeonHyungJo |
|324| [What are the benefits of using typescript with reactjs?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-benefits-of-using-typescript-with-reactjs)| :ballot_box_with_check: | @SeonHyungJo |
|325| [How do you make sure that user remains authenticated on page refresh while using Context API State Management?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-make-sure-that-user-remains-authenticated-on-page-refresh-while-using-Context-API-State-Management?)| :ballot_box_with_check: | @dididy  |
|326| [What are the benefits of new JSX transform?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-benefits-of-new-jsx-transform)| :ballot_box_with_check: | @SeonHyungJo |
|327| [How does new JSX transform different from old transform?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-does-new-jsx-transform-different-from-old-transform)| :ballot_box_with_check: | @SeonHyungJo |
|328| [How do you get redux scaffolding using create-react-app?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#how-do-you-get-redux-scaffolding-using-create-react-app)|  | @SeonHyungJo |
|329| [What are React Server components?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-react-server-components)|  | @SeonHyungJo |
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|331| [What are the different ways to prevent state mutation?](https://github.com/SeonHyungJo/reactjs-interview-questions-korean/#what-are-the-different-ways-to-prevent-state-mutation)

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