tsconfig.json

{
  "compilerOptions": {
    /* Visit https://aka.ms/tsconfig.json to read more about this file */

    /* Basic Options */
    "target": "ES2017",                             /* Specify ECMAScript target version: 'ES3' (default), 'ES5', 'ES2015', 'ES2016', 'ES2017', 'ES2018', 'ES2019', 'ES2020', or 'ESNEXT'. */
    "module": "ES2015",                             /* Specify module code generation: 'none', 'commonjs', 'amd', 'system', 'umd', 'es2015', 'es2020', or 'ESNext'. */
    "sourceMap": true,                              /* Generates corresponding '.map' file. */
    "outDir": "./dist/",                            /* Redirect output structure to the directory. */
    "rootDir": "./src",                             /* Specify the root directory of input files. Use to control the output directory structure with --outDir. */

    /* Strict Type-Checking Options */
    "strict": true,                                 /* Enable all 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. */
    "noUncheckedIndexedAccess": true,               /* Include 'undefined' in index signature results */
    "noImplicitOverride": true,                     /* Ensure overriding members in derived classes are marked with an 'override' modifier. */
    "noPropertyAccessFromIndexSignature": true,     /* Require undeclared properties from index signatures to use element accesses. */

    /* Module Resolution Options */
    "moduleResolution": "node",                     /* Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6). */
    // "types": [],                                 /* Type declaration files to be included in compilation. */

    /* Advanced Options */
    "skipLibCheck": true                            /* Skip type checking of declaration files. */,
    "forceConsistentCasingInFileNames": true        /* Disallow inconsistently-cased references to the same file. */
  }
}