The Jest philosophy is to work great by default, but sometimes you just need more configuration power. The JEST 2025 examination is scheduled to be conducted on June 22, 2025 (Sunday) between 2 PM to 5 PM. The score for JEST 2025 will remain valid till the date of declaration of results of JEST 2027. Jest is a JavaScript testing framework developed by Facebook, designed primarily for unit testing React applications. However, it can be used for testing any JavaScript codebase. This tutorial covers everything you need to know about using Jest to test JavaScript, a simple and powerful testing framework. Whether you're a beginner or have some experience, this guide will help you write, run, and manage tests for your JavaScript applications.
