tsconfig.json

{
    "compilerOptions": {
        "module": "commonjs",
        "target": "es6",
        "rootDir": "src",
        "outDir": "build",
        "noImplicitAny": true,
        "preserveConstEnums": true,
        "allowSyntheticDefaultImports": true,
        "sourceMap": false
    },
    "filesGlob": [
        "typings/index.d.ts",
        "src/**/*.ts"
    ],
    "exclude": [
        "src/**/*.spec.ts",
        "node_modules"
    ],
    "compileOnSave": true
}