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'. */
    "sourceMap": true,                        /* Generates corresponding '.map' file. */
    "removeComments": true,                   /* Do not emit comments to output. */

    /* Strict Type-Checking Options */
    "strict": true,                           /* Enable all strict type-checking options. */
    "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 */
    "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": { "~/*": [ "src/*", "test/*" ]}, /* A series of entries which re-map imports to lookup locations relative to the 'baseUrl'. */
    "esModuleInterop": true,                  /* Enables emit interoperability between CommonJS and ES Modules via creation of namespace objects for all imports. Implies 'allowSyntheticDefaultImports'. */

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

    /* Advanced Options */
    "forceConsistentCasingInFileNames": true, /* Disallow inconsistently-cased references to the same file. */
    "newLine": "LF",                          /* Use the specified end of line sequence to be used when emitting files: "crlf" (windows) or "lf" (unix). */
    "resolveJsonModule": true,                /* Allows for importing, extracting types from and generating .json files. */

    /* Specify library files to be included in the compilation. */
    "lib": [
      "esnext",
      "esnext.asynciterable"
    ]
  },
  "include": [ "src/**/*.ts", "test/**/*.ts" ]
}