fable-compiler · jkone27 · Mar 25, 2025 · Mar 25, 2025 · Mar 26, 2025 · nojaf
diff --git a/.gitignore b/.gitignore
@@ -489,4 +489,7 @@ tmp/
 output/
 
 # VSCode
-.vscode/
+.vscode/
+
+# package lock file
+package-lock.json
diff --git a/hello-world/.gitignore b/hello-world/.gitignore
@@ -0,0 +1,28 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?
+
+# regen each time
+bun.lock
+package.lock.json
diff --git a/hello-world/README.md b/hello-world/README.md
@@ -0,0 +1,24 @@
+## Hello World
+
+### run
+
+```
+bun run dev
+```
+
+### build
+
+```
+bun run build
+```
+
+### preview
+
+```
+bun run preview
+```
+
+
+### latest?
+
+`bun run archive` should generate and move the latest `vite-plugin-fable.x.y.z.tgz` into `/archive` folder, at this point you can run: `bun i` to install latest version of the library and test it out. if you want to cleanup `node_modules` and lock files, and instal the dep from scratch a utility script is provided `install-arch` as well.
diff --git a/hello-world/bun.lock b/hello-world/bun.lock
diff --git a/hello-world/lib/latest.tgz b/hello-world/lib/latest.tgz
diff --git a/hello-world/package.json b/hello-world/package.json
@@ -0,0 +1,22 @@
+{
+  "name": "hello-world",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "archive": "cd .. && bun pm pack && cd hello-world && mkdir -p lib && mv ../*.tgz ./lib/latest.tgz",
+    "install-arch": "bun add ./lib/latest.tgz -d --trust",
+    "dev": "vite",
+    "build": "vite build",
+    "preview": "vite preview"
+  },
+  "devDependencies": {
+    "vite": "^6.2.0",
+    "vite-plugin-fable": "./lib/latest.tgz",
+    "vitest": "^3.0.9"
+  },
+  "trustedDependencies": [
+    "esbuild",
+    "vite-plugin-fable"
+  ]
+}
diff --git a/hello-world/src/App.fsproj b/hello-world/src/App.fsproj
@@ -0,0 +1,19 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net9.0</TargetFramework>
+    <ManagePackageVersionsCentrally>false</ManagePackageVersionsCentrally>
+      <DisableImplicitFSharpCoreReference>false</DisableImplicitFSharpCoreReference>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <Compile Include="Counter.fs" />
+    <Compile Include="Main.fs" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Fable.Browser.Dom" Version="2.14.0" />
+    <PackageReference Include="Fable.Core" Version="4.3.0" />
+  </ItemGroup>
+</Project>
diff --git a/hello-world/src/Counter.fs b/hello-world/src/Counter.fs
@@ -0,0 +1,18 @@
+module Counter
+
+open Browser.Dom
+open Browser.Types
+
+let setupCounter (element: Element) =
+
+    let mutable counter = 0
+
+    let setCounter count =
+        counter <- count
+        element.innerHTML <- $"count is {counter}" 
+        printfn $"counter is: {counter}"
+        ()
+
+    element.addEventListener("click", fun _ ->  setCounter (counter + 1))
+
+    setCounter 0
diff --git a/hello-world/src/Directory.Build.props b/hello-world/src/Directory.Build.props
@@ -0,0 +1 @@
+<Project></Project>
diff --git a/hello-world/src/Main.fs b/hello-world/src/Main.fs
@@ -0,0 +1,43 @@
+module App
+
+open Browser.Dom
+open Fable.Core.JsInterop
+open Counter
+
+// Import CSS and SVG files
+importSideEffects "./style.css"
+
+let viteLogo: string = importDefault "./assets/vite.svg"
+
+printfn $"{viteLogo}"
+
+let javascriptLogo : string = importDefault "./javascript.svg"
+
+printfn $"{javascriptLogo}"
+
+// make html markup available using vscode F# html ext
+let html = id
+
+// Create the HTML content
+let app = document.querySelector("#app")
+app.innerHTML <- 
+  html $"""
+    <div>
+      <a href="https://vite.dev" target="_blank">
+        <img src="{viteLogo}" class="logo" alt="Vite logo" />
+      </a>
+      <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript" target="_blank">
+        <img src="{javascriptLogo}" class="logo vanilla" alt="JavaScript logo" />
+      </a>
+      <h1>Hello Vite!</h1>
+      <div class="card">
+        <button id="counter" type="button"></button>
+      </div>
+      <p class="read-the-docs">
+        Click on the Vite logo to learn more
+      </p>
+    </div>
+  """
+
+document.querySelector("#counter")
+|> Counter.setupCounter 
diff --git a/hello-world/src/assets/vite.svg b/hello-world/src/assets/vite.svg
diff --git a/hello-world/src/index.html b/hello-world/src/index.html
@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <link rel="icon" type="image/svg+xml" href="/vite.svg" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Vite App</title>
+  </head>
+  <body>
+    <div id="app"></div>
+    <script type="module" src="Main.fs"></script>
+  </body>
+</html>
diff --git a/hello-world/src/javascript.svg b/hello-world/src/javascript.svg
diff --git a/hello-world/src/style.css b/hello-world/src/style.css
@@ -0,0 +1,96 @@
+:root {
+  font-family: system-ui, Avenir, Helvetica, Arial, sans-serif;
+  line-height: 1.5;
+  font-weight: 400;
+
+  color-scheme: light dark;
+  color: rgba(255, 255, 255, 0.87);
+  background-color: #242424;
+
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+}
+
+a {
+  font-weight: 500;
+  color: #646cff;
+  text-decoration: inherit;
+}
+a:hover {
+  color: #535bf2;
+}
+
+body {
+  margin: 0;
+  display: flex;
+  place-items: center;
+  min-width: 320px;
+  min-height: 100vh;
+}
+
+h1 {
+  font-size: 3.2em;
+  line-height: 1.1;
+}
+
+#app {
+  max-width: 1280px;
+  margin: 0 auto;
+  padding: 2rem;
+  text-align: center;
+}
+
+.logo {
+  height: 6em;
+  padding: 1.5em;
+  will-change: filter;
+  transition: filter 300ms;
+}
+.logo:hover {
+  filter: drop-shadow(0 0 2em #646cffaa);
+}
+.logo.vanilla:hover {
+  filter: drop-shadow(0 0 2em #f7df1eaa);
+}
+
+.card {
+  padding: 2em;
+}
+
+.read-the-docs {
+  color: #888;
+}
+
+button {
+  border-radius: 8px;
+  border: 1px solid transparent;
+  padding: 0.6em 1.2em;
+  font-size: 1em;
+  font-weight: 500;
+  font-family: inherit;
+  background-color: #1a1a1a;
+  cursor: pointer;
+  transition: border-color 0.25s;
+}
+button:hover {
+  border-color: #646cff;
+}
+button:focus,
+button:focus-visible {
+  outline: 4px auto -webkit-focus-ring-color;
+}
+
+@media (prefers-color-scheme: light) {
+  :root {
+    color: #213547;
+    background-color: #ffffff;
+  }
+  a:hover {
+    color: #747bff;
+  }
+  button {
+    background-color: #f9f9f9;
+  }
+}
diff --git a/hello-world/vite.config.js b/hello-world/vite.config.js
@@ -0,0 +1,34 @@
+import { defineConfig } from 'vite';
+import fable from 'vite-plugin-fable';
+import { configDefaults } from 'vitest/config';
+
+// https://nojaf.com/vite-plugin-fable/recipes.html#Using-React
+// https://nojaf.com/vite-plugin-fable/recipes.html#Fable-Core-JSX
+
+export default defineConfig({
+ // order of plugins matters, fable needs to be first
+  plugins: [
+    fable({
+      fsproj: "./src/App.fsproj"
+    }),
+  ],
+  root: "./src",
+  build: {
+    outDir: "../dist",
+    sourcemap: 'inline'
+  },
+  define: {
+    // required if u have: `process is undefined` 
+    // while loading react jsoncomponents
+    'process.env': {}
+  },
+  test: {
+    include: ['**/*.{test,spec}.{js,jsx,ts,tsx,fs}'],
+    exclude: [...configDefaults.exclude, 'dist', '.idea', '.git', '.cache'],
+    environment: 'jsdom',
+    setupFiles: '../vitest.ts',
+    transform: {
+      '^.+\\.fs$': 'vite-plugin-fable'
+    }
+  }
+})
diff --git a/hello-world/vitest.ts b/hello-world/vitest.ts
@@ -0,0 +1,11 @@
+import { 
+    describe as vitestDescribe, 
+    test as vitestTest, 
+    expect as vitestExpect 
+} from 'vitest';
+
+// Redirect Jest functions to Vitest
+globalThis.describe = vitestDescribe;
+globalThis.test = vitestTest;
+globalThis.it = vitestTest; // Alias for `it` if used in tests
+globalThis.expect = vitestExpect;