Create React App 2.0: Babel 7, Sass, and More

Re:Create React App 2.0: Babel 7, Sass, and More by sbr464 on Tuesday October 02, 2018 @01:27AM (#18119030)

I don’t have a post but I took a half hour the other day and did it, it was basically:

Add typescript, babel typescript, add the plugin in babelrc, and update the Babel cli build command in package.json to look for ts file extensions.

That enabled me to start incrementally adding typescript into an existing node.js codebase, I was surprised how easy it was.

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Re:Create React App 2.0: Babel 7, Sass, and More by sbr464 on Tuesday October 02, 2018 @03:46AM (#18119530)

Here were the changes to get typescript working with an existing node.js codebase (babel 7)

package.json (scripts)

  BABEL_ENV=development babel -d build/ src/ --extensions \".ts,.tsx,.js\" --quiet --source-maps inline

package.json (add property)

  "type-check": "tsc",

package.json (dev depenencies)

  @babel/preset-typescript, typescript

babelrc (add with env)

  presets: ["@babel/typescript"]

tsconfig (example)

  {
  "compilerOptions": {
    "target": "esnext",
    "module": "commonjs",
    "declaration": true,
    "outDir": "build",
    "strict": true,
    "allowSyntheticDefaultImports": true,
    "esModuleInterop": true,
    "skipLibCheck": true
  }
}

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