{
  "compilerOptions": {
    "target": "es2015",
    "strict": true,
    "lib": ["es2016", "dom"],
    "module": "es2015",
    "moduleResolution": "node",
    "noImplicitAny": false,
    "noImplicitThis": false,
    "sourceMap": true,
    "baseUrl": "./src"
  },
  "include": [
    "./src/**/*"
  ]
}

{
  "compilerOptions": {
    "target": "es2016",
    "strict": true,
    "lib": ["es2016", "dom"],
    "module": "es2015",
    "moduleResolution": "node",
    "noImplicitAny": false,
    "noImplicitThis": false,
    "sourceMap": true,
    "baseUrl": "./src"
  },
  "include": [
    "./src/**/*"
  ]
}

Switch frontend target to ES2016.
Switch frontend target to ES2016.
