tsconfig.json

{
    "compilerOptions": {
        "sourceMap":  true,
        "outDir": "./dist",
        "module": "commonjs",
        "moduleResolution": "node",
        "charset": "utf-8",
        "inlineSources" : false,
        "alwaysStrict" : true,
        "declaration" : true,
        "pretty": true,
        "removeComments": false,
        "resolveJsonModule": true,
        "target": "es5",
        "lib": [
            "es2015",
            "es2016",
            "es2017",
            "dom",
            "dom.iterable"
        ],
        "baseUrl": "./",
        "types": [
            "node",
            "mocha",
            "chai",
            "core-js"
        ],
        "plugins": [
            {
                "name": "typescript-tslint-plugin"
            }
        ]
    },
    "exclude": [
        "node_modules",
        "offline-module-cache",
        "build",
        "coverage",
        "dist"
    ],
    "include": [
        "**/*.ts"
    ]
}