@alienfast/tsconfig/react.json

> Shared [TypeScript configs](https://www.typescriptlang.org/docs/handbook/tsconfig-json.html) for AlienFast projects

{
  "$schema": "https://json.schemastore.org/tsconfig",

  "display": "React shared base",
  "extends": "@tsconfig/create-react-app/tsconfig.json",

  "compilerOptions": {
    // All packages should be ESM, only the final webpack should be different.
    "target": "esnext",
    "module": "esnext",
    // Final webpack should target modern browsers instead of es5 with es2015
    // "target": "es2015",

    // Do not allow js
    "allowJs": false,
    // No js, ts, maps when errors are reported
    "noEmitOnError": true,
    // Do not allow inference to fall back to any type
    "noImplicitAny": true,
    // Ensure a return path
    "noImplicitReturns": true,
    // Report errors on unused local variables.
    "noUnusedLocals": false,
    "resolveJsonModule": true,
    // obj[foo] suppression
    // "suppressImplicitAnyIndexErrors": true,  -- deprecated in 5.0

    // Ensure that .d.ts files are created by tsc, but not .js files (babel will do this for us)
    "declaration": true,
    "emitDeclarationOnly": true,
    // Generates a source map for .d.ts files which map back to the original .ts source file.
    "declarationMap": true,
    // Ensure that Babel can safely transpile files in the TypeScript project
    "isolatedModules": true,

    // material-ui uses emotion https://emotion.sh/docs/typescript
    // "jsxImportSource": "@emotion/react",  NEED for mui 5.x

    // https://github.com/jquense/yup#typescript-configuration
    "strictFunctionTypes": false,

    // vite suggestions
    "useDefineForClassFields": true
  }
}