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How to create your first unit test using Jest

Unit Testing: Jestbasic, getting started, jest, unit test

Set up Jest for JavaScript testing by installing it via npm, configuring the package.json, and writing unit tests. Learn to organize tests, utilize mocking, and employ asynchronous testing. Enhance testing skills with lifecycle methods, code coverage, and snapshot testing. Optimize test structure for maintainability and clarity.

Libraries: Svelte

How to create a component in Svelte

Libraries: Sveltebasic, component, structure, svelte

React components manage data with props and state via useState. Use the callback pattern for child-to-parent communication, lifting state up. Solve prop drilling with component composition using the children prop for creating flexible, reusable UI.