tsconfig.json

{
  "compilerOptions": {
    /* Basic Options */
    "target": "es5" /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017','ES2018' or 'ESNEXT'. */,
    "module": "commonjs" /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */,
    "lib": ["es2017", "dom"] /* Specify library files to be included in the compilation. */,
    "outDir": "lib" /* Redirect output structure to the directory. */,
    /* Module Resolution Options */
    "moduleResolution": "node" /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */,
    "baseUrl": "./" /* Base directory to resolve non-absolute module names. */,
    "paths": {
      "openfl": ["node_modules/openfl/lib/openfl"],
      "openfl/*": ["node_modules/openfl/lib/openfl/*"]
    } /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */,
    "types": ["reflect-metadata"] /* Type declaration files to be included in compilation. */,
    "allowSyntheticDefaultImports": false /* Allow default imports from modules with no default export. This does not affect code emit, just typechecking. */,
    "esModuleInterop": false /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */,
    /* Basic Config Options */
    "allowJs": false /* Allow javascript files to be compiled. */,
    "checkJs": false /* Report errors in .js files. */,
    "declaration": true /* Generates corresponding '.d.ts' file. */,
    "declarationMap": false /* Generates a sourcemap for each corresponding '.d.ts' file. */,
    "removeComments": false /* Emit comments to output. */,
    "importHelpers": true /* Import emit helpers from 'tslib'. */,
    /* Strict Type-Checking Options */
    "strict": false /* Enable all strict type-checking options. */,
    "noImplicitAny": true /* Raise error on expressions and declarations with an implied 'any' type. */,
    "strictNullChecks": false /* Enable strict null checks. */,
    "strictFunctionTypes": false /* Enable strict checking of function types. */,
    "strictPropertyInitialization": false /* Enable strict checking of property initialization in classes. */,
    "noImplicitThis": false /* 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": false /* 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. */,
    /* Source Map Options */
    "sourceMap": true /* Generates corresponding '.map' 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. */
  },
  "include": ["./src/**/*.ts"]
}