Configure TypeScript for your project

The tsconfig.json file contains a default configuration of the TypeScript compiler.

For a Node.js or NativeScript project the tsconfig.json should look like :

{
    "compilerOptions": {
        "module": "commonjs",
        "moduleResolution": "node",
        "target": "es5",
        "sourceMap":true,
        "experimentalDecorators": true,
        "emitDecoratorMetadata": true
    },
    "exclude": [
        "node_modules"
    ]
}

More details on the compiler options at http://www.typescriptlang.org/docs/handbook/tsconfig-json.html and http://www.typescriptlang.org/docs/handbook/compiler-options.html