NPM Run Build & NPM Test Build

The npm run build command is used to build your React application for production. This means that it will minify your code, remove unnecessary comments, and optimize your images. This makes your application smaller and faster, which is important for production environments.

The npm run build command is needed because it ensures that your application is ready for production. If you don’t build your application before deploying it, you may experience performance issues or other problems.

The npm test command is used to run the tests for your React application. This ensures that your application is working properly and that it doesn’t have any bugs.

The npm test command is needed because it helps you to ensure the quality of your application. If you don’t run the tests before deploying your application, you may release a buggy application that could cause problems for your users.

npm run build:

Compiles your React application into static assets.
Minifies your code and removes unnecessary comments.
Optimizes your images for production.
Creates a production build folder that contains your compiled application.

npm test:

Runs the Jest test runner.
Automatically loads your React application in a test environment.
Runs a series of tests against your application.
Reports the results of the tests to the console.

Let’s break down npm run build and npm test in simple terms:

`npm run build`:

What it does: When you run npm run build, it’s like telling a construction worker to build the final version of your website. It takes all the different pieces of your website’s code, like the HTML, CSS, and JavaScript, and puts them together in a way that makes the website faster and smaller for people to use.

Why it’s needed: During development, you might have lots of extra code and comments that make your website easier to work on, but they’re not needed when people visit your site. Building your project removes these extra things, organizes your code neatly, and makes your website ready to be published online.