tsconfig.json

{
  "compilerOptions": {
    /* Basic Options */
    "target": "ESNext", // Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019' or 'ESNEXT'.
    "module": "ESNext", // Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'.
    "lib": ["DOM", "DOM.Iterable", "ESNext"], // Specify library files to be included in the compilation.
    "jsx": "react", // Specify JSX code generation: 'preserve', 'react-native', or 'react'.
    "removeComments": true, // Do not emit comments to output.
    "skipLibCheck": true, // set to true when needed to work around upstream errors caused by isolatedModules

    /* Strict Type-Checking Options */
    "strict": true, // Enable all strict type-checking options.

    /* Module Resolution Options */
    "moduleResolution": "node", // https://stackoverflow.com/questions/49701735/cannot-find-module-csstype // Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6).
    "esModuleInterop": true, // Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'.

    /* Even More Options */
    "resolveJsonModule": true,
    "incremental": true,
    "noEmit": true,

    "strictPropertyInitialization": false,

    /**
     * HI, HELLO! READ THIS:
     * =====================
     * Below are all the options generated by `tsc --init` that we are currently
     * not using and have no plan to use. TypeScript is pretty config-heavy.
     * Hopefully this'll help remind anyone who's curious what's possible (or at
     * least give them some terms to Google).
     */

    /* Basic Options */
    // "isolatedModules": true, // Transpile each file as a separate module (similar to 'ts.transpileModule').
    // "noEmit": true, // Do not emit outputs.
    // "incremental": true, // Enable incremental compilation
    // "allowJs": true, // Allow javascript files to be compiled.
    // "checkJs": true, // Report errors in .js files.
    // "declaration": true, // Generates corresponding '.d.ts' file.
    // "declarationMap": true, // Generates a sourcemap for each corresponding '.d.ts' file.
    // "sourceMap": true, // Generates corresponding '.map' file.
    // "outFile": "./", // Concatenate and emit output to single file.
    // "outDir": "./", // Redirect output structure to the directory.
    // "rootDir": "./", // Specify the root directory of input files. Use to control the output directory structure with --outDir.
    // "composite": true, // Enable project compilation */
    // "tsBuildInfoFile": "./", // Specify file to store incremental compilation information
    // "importHelpers": true, // Import emit helpers from 'tslib'.
    // "downlevelIteration": true, // Provide full support for iterables in 'for-of', spread, and destructuring when targeting 'ES5' or 'ES3'.

    /* Strict Type-Checking Options */
    // "noImplicitAny": true, // Raise error on expressions and declarations with an implied 'any' type.
    // "strictNullChecks": true, // Enable strict null checks.
    // "strictFunctionTypes": true, // Enable strict checking of function types.
    // "strictBindCallApply": true, // Enable strict 'bind', 'call', and 'apply' methods on functions.
    // "strictPropertyInitialization": true, // Enable strict checking of property initialization in classes.
    // "noImplicitThis": true, // Raise error on 'this' expressions with an implied 'any' type.
    // "alwaysStrict": true, // Parse in strict mode and emit "use strict" for each source file.

    /* Additional Checks */
    // "noUnusedLocals": true, // Report errors on unused locals.
    // "noUnusedParameters": true, // Report errors on unused parameters.
    // "noImplicitReturns": true, // Report error when not all code paths in function return a value.
    // "noFallthroughCasesInSwitch": true, // Report errors for fallthrough cases in switch statement.

    /* Module Resolution Options */
    // "baseUrl": "./", // Base directory to resolve non-absolute module names.
    // "paths": {}, // A series of entries which re-map imports to lookup locations relative to the 'baseUrl'.
    // "rootDirs": [], // List of root folders whose combined content represents the structure of the project at runtime.
    // "typeRoots": [], // List of folders to include type definitions from.
    // "types": [], // Type declaration files to be included in compilation.
    // "allowSyntheticDefaultImports": true, // Allow default imports from modules with no default export. This does not affect code emit, just typechecking.
    // "preserveSymlinks": true, // Do not resolve the real path of symlinks.
    // "allowUmdGlobalAccess": true, // Allow accessing UMD globals from modules.

    /* Source Map Options */
    // "sourceRoot": "", // Specify the location where debugger should locate TypeScript files instead of source locations.
    // "mapRoot": "", // Specify the location where debugger should locate map files instead of generated locations.
    // "inlineSourceMap": true, // Emit a single file with source maps instead of having a separate file.
    // "inlineSources": true, // Emit the source alongside the sourcemaps within a single file; requires '--inlineSourceMap' or '--sourceMap' to be set.

    /* Experimental Options */
    // "experimentalDecorators": true, // Enables experimental support for ES7 decorators.
    // "emitDecoratorMetadata": true, // Enables experimental support for emitting type metadata for decorators.
  }
}