tsconfig.json

{
  "compilerOptions": {
    "lib": ["DOM","ScriptHost", "ESNext"],
    "target": "es5",
    "module": "es2015",
    "moduleResolution": "node",
    "noEmitHelpers": true,
    "importHelpers": true,
    "declaration": true,
    "declarationMap": true,
    "outDir": "./dist"
  },
}