tsconfig-base.json

{
  "compilerOptions": {
    "target": "ES2019",                    /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', or 'ESNEXT'. */
    "module": "commonjs",                  /* Specify module code generation: 'commonjs', 'amd', 'system', 'umd', 'es2015', or 'ESNext'. */
    "lib": ["es2019"],                     /* Specify library files to be included in the compilation:  */
    "strict": true,                        /* Enable all strict type-checking options. */
    "strictPropertyInitialization": true,  /* Require all properties be initialized in the constructor. */
    "alwaysStrict": true,                  /* Parse in strict mode and emit "use strict" for each source file. */
    "declaration": true,                   /* Generates corresponding '.d.ts' file. */
    "declarationMap": true,                /* Generates declaration map '.d.ts.map' file. */
    "esModuleInterop": false,              /* Turn on babel and typesystem compatibility with ES modules */
    "sourceMap": true,                     /* Generates source file .js.map file. */
    "inlineSourceMap": false,              /* Emit a single file with source maps instead of having a separate file. */
    "inlineSources": false,                /* Emit the source alongside the sourcemaps within a single file. */
    "noUnusedLocals": true,                /* Report errors on unused locals. */
    "noUnusedParameters": true,            /* Report errors on unused parameters. */
    "noImplicitAny": true,                 /* Report error on expressions and declarations with an implied any type. */
    "noImplicitReturns": true,             /* Report error when not all code paths in function return a value. */
    "noFallthroughCasesInSwitch": true,    /* Report errors for fallthrough cases in switch statement. */
    "resolveJsonModule": true,             /* Include modules imported with .json extension. */
    "composite": true,                     /* Ensure TypeScript can determine where to find the outputs of the referenced project to compile project. */
    "incremental": true,                   /* Enable incremental compilation by reading/writing information from prior compilations to a file on disk. */
    "useDefineForClassFields": false,      /* Use Object.defineProperty for introducing class fields. */
  }
}