tsconfig.json

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

    /* Language and Environment */
    "target": "es6",

    /* Modules */
    "module": "commonjs" /* Specify what module code is generated. */,
    "baseUrl": "./src" /* Specify the base directory to resolve non-relative module names. */,

    /* Emit */
    "declaration": true /* Generate .d.ts files from TypeScript and JavaScript files in your project. */,
    "sourceMap": true /* Create source map files for emitted JavaScript files. */,
    "outDir": "./dist" /* Specify an output folder for all emitted files. */,

    /* Interop Constraints */
    "forceConsistentCasingInFileNames": true /* Ensure that casing is correct in imports. */,

    /* Type Checking */
    "strict": true /* Enable all strict type-checking options. */,
    "noUnusedLocals": true /* Enable error reporting when a local variables aren't read. */,
    "noUnusedParameters": true /* Raise an error when a function parameter isn't read */,
    "noImplicitReturns": true /* Enable error reporting for codepaths that do not explicitly return in a function. */,
    "noFallthroughCasesInSwitch": true /* Enable error reporting for fallthrough cases in switch statements. */,
    "noUncheckedIndexedAccess": true /* Include 'undefined' in index signature results */,
    "noImplicitOverride": true /* Ensure overriding members in derived classes are marked with an override modifier. */,
    "noPropertyAccessFromIndexSignature": true /* Enforces using indexed accessors for keys declared using an indexed type */,
    "allowUnreachableCode": false /* Disable error reporting for unreachable code. */
  }
}