is/tsconfig.json

{
    "compileOnSave": true,
    "compilerOptions": {
        /* es2015 requires moduleResolution and module to be set,
        see https://github.com/Microsoft/TypeScript/issues/8189 */
        "target": "es2015",
        "moduleResolution": "node",
        "module": "none",
        "strict": true,
        "declaration": true,
        "sourceMap": true,
        "outDir": "dist",
        "lib": [
            "es2015", "dom", "scripthost"
        ]
    }
}