add role

Author: dfounderliu

.eslintignore

@@ -0,0 +1,3 @@
+coverage
+dist
+node_modules

.eslintrc.js

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+module.exports = {
+  root: true,
+  extends: ['prettier'],
+  plugins: ['import', 'prettier'],
+  env: {
+    es6: true,
+    jest: true,
+    node: true
+  },
+  parser: 'babel-eslint',
+  parserOptions: {
+    ecmaVersion: 2018,
+    sourceType: 'module',
+    ecmaFeatures: {
+      jsx: true
+    }
+  },
+  globals: {
+    on: true // for the Socket file
+  },
+  rules: {
+    'array-bracket-spacing': [
+      'error',
+      'never',
+      {
+        objectsInArrays: false,
+        arraysInArrays: false
+      }
+    ],
+    'arrow-parens': ['error', 'always'],
+    'arrow-spacing': ['error', { before: true, after: true }],
+    'comma-dangle': ['error', 'never'],
+    curly: 'error',
+    'eol-last': 'error',
+    'func-names': 'off',
+    'id-length': [
+      'error',
+      {
+        min: 2,
+        max: 50,
+        properties: 'never',
+        exceptions: ['e', 'i', 'n', 't', 'x', 'y', 'z', '_', '$']
+      }
+    ],
+    'no-alert': 'error',
+    'no-console': 'error',
+    'no-const-assign': 'error',
+    'no-else-return': 'error',
+    'no-empty': 'off',
+    'no-shadow': 'error',
+    'no-undef': 'error',
+    'no-unused-vars': 'error',
+    'no-use-before-define': 'error',
+    'no-useless-constructor': 'error',
+    'object-curly-newline': 'off',
+    'object-shorthand': 'off',
+    'prefer-const': 'error',
+    'prefer-destructuring': ['error', { object: true, array: false }],
+    quotes: [
+      'error',
+      'single',
+      {
+        allowTemplateLiterals: true,
+        avoidEscape: true
+      }
+    ],
+    semi: ['error', 'never'],
+    'spaced-comment': 'error',
+    strict: ['error', 'never'],
+    'prettier/prettier': 'error'
+  }
+}

.prettierignore

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+coverage
+dist
+node_modules