freight/app/static/bower_compon.../popper.js/.config/tsconfig.json

{
  "include": ["../src/**/*.ts"],
  "exclude": ["../**/*.test.ts"],
  "compilerOptions": {
    "target": "es2015",
    "lib": ["dom", "es2017"],
    "moduleResolution": "node",
    "module": "es2015",
    "removeComments": false,
    "declaration": true,
    "emitDeclarationOnly": true,
    "outDir": "lib"
  }
}