tsconfig.json

{
    "compilerOptions": {
        "target": "ES6" /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */,
        "module": "ESNext" /* Specify what module code is generated. */,

        "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.
        "baseUrl": ".",

        "declaration": true, // Generates corresponding '.d.ts' file
        "esModuleInterop": true, // Interop between commonjs and ESModules, useful if consuming dependencies with varying module types
        "moduleResolution": "node", // Specify module resolution strategy: 'node' (Node.js) or 'classic' (TypeScript pre-1.6).

        "strict": true, // Enable all strict type checking options
        "skipLibCheck": true, // Skip type checking of declaration files

        /* Experimental */
        "experimentalDecorators": true, // Enables experimental support for ES7 decorators

        /* Advanced Options */
        "removeComments": true, // Remove comments from the output files
        "noImplicitAny": true, // Raise error on expressions and declarations with an implied 'any' type
        "noUnusedLocals": true, // Report errors on unused locals
        "noUnusedParameters": true, // Report errors on unused parameters
        "noImplicitReturns": true, // Report an error if not all code paths in function return a value
        "noFallthroughCasesInSwitch": true, // Report errors for fallthrough cases in switch statement
        "forceConsistentCasingInFileNames": true // Disallow inconsistently-cased references to the same file.
    },
    "exclude": ["node_modules", "dist", "src/**/*.spec.ts"]
}