It is the most popular and recommended testing tool for React. It was created by Facebook. Jest is not just a library but a testing framework. It industry list means it comes with a certified library, test runner and support for things. Because it is specifically designed to test React applications, it can also be used on other JavaScript frameworks. Why Jest It's industry list simple to set up - it's simple to install on its own. We can install it directly using npm or yarn.
How to get started installation - The first download node Then open the node.js command prompt To get the node version we use Node -v Then install npm industry list using install npm command We create a folder in the Desktop called "Jest" Then use prompt command - desk cd cd Jest Finally, run a yarn test or npm run test: run test npm We begin by writing industry list a test of a hypothetical function that appears to be two numbers.
First, create a subtract.js file: Copy to Clipboard function subtract(a, b) { return a - b; } module.exports = subtract; Then create a file industry list named evenly 2 (5ms) Benefits of using Jest It is compatible: - The framework is compatible with Rectangular, React, NodeJS, VueJS and other child - based projects. Faster than other traditional tools : - It is a very fast testing tool. When our test is CPU bound, it can save significant time from our tests. The industry list local test used Jest 45 minutes dropped to 14 to 15 minutes.