What does tsconfig.spec.json do?

Question

I have seen this and this posts and they have made me understand tsconfig.app.json and tsconfig.json.

I have an angular app which has tsconfig.app.json, tsconfig.json and tsconfig.spec.json

What is the role of tsconfig.spec.json? What does the 'spec' in tsconfig.spec.json stand for?

Answer 1

It is TypeScript configuration for the application tests.

For example below code you says

"types": ["jasmine", "node"]

I will use jasmine for testing on nodejs environment.

{
  "extends": "../tsconfig.json",
  "compilerOptions": {
    "outDir": "../out-tsc/spec",
    "module": "commonjs",
    "target": "es5",
    "baseUrl": "",
    "types": [
      "jasmine",
      "node"
    ]
  },
  "files": [
    "test.ts",
    "polyfills.ts"
  ],
  "include": [
    "**/*.spec.ts",
    "**/*.d.ts"
  ]
}