tsconfig.frontend.json

{
  "extends": "./tsconfig.base.json",
  "compilerOptions": {
    /* Module resolution */
    "target": "es5",
    "rootDirs": ["./static", "./types"],
    /* Code generation */
    "inlineSources": true,
    "strictPropertyInitialization": false,
    "lib": ["dom", "es5"]
  },
  "exclude": ["out", "test", "etc", "examples", "app.js", "lib", "examples"]
}