@jest/types

This package contains shared types of Jest's packages.

If you are looking for types of Jest globals, you can import them from @jest/globals package:

1import {describe, expect, it} from '@jest/globals';
2
3describe('my tests', () => {
4  it('works', () => {
5    expect(1).toBe(1);
6  });
7});

If you prefer to omit imports, a similar result can be achieved installing the @types/jest package. Note that this is a third party library maintained at DefinitelyTyped and may not cover the latest Jest features.

Another use-case for @types/jest is a typed Jest config as those types are not provided by Jest out of the box:

1// jest.config.ts
2import {Config} from '@jest/types';
3
4const config: Config.InitialOptions = {
5  // some typed config
6};
7
8export default config;