Courses / Frontend Testing
19. jest.config.js / jest.config.ts
Key Jest configuration options and integrating TypeScript transformers like ts-jest or swc-jest.
JavaScript
jest.config.js / jest.config.ts
A Jest config file tells the test runner how to find, transform, and run your tests (including TypeScript setup).
"I want my TypeScript tests to run without manual transpile steps."
Jest configuration files (jest.config.js or .ts) export settings that control test matching, transforms, module resolution, and other behavior; using ts-jest or swc-jest lets Jest run TypeScript by transforming files before tests execute.
"I want my TypeScript tests to run without manual transpile steps."
Jest configuration files (jest.config.js or .ts) export settings that control test matching, transforms, module resolution, and other behavior; using ts-jest or swc-jest lets Jest run TypeScript by transforming files before tests execute.