What is Jest?
Key Features of Jest
- Zero-configuration: Jest is ready to use right out of the box, with no configuration required. This makes it an ideal choice for projects of all sizes.
- Mocking: Jest provides a robust mocking library, enabling developers to create mock functions, mock modules, and even mock timers. This allows for more control over the code’s behavior during testing.
- Code coverage: Jest can collect information about which lines of code are covered by tests, aiding in identifying areas that need more attention.
- Async testing: Jest supports asynchronous testing, which is critical when working with promises, async/await, and callbacks.
Why Use Jest?
Applying Jest in Web Development