babel-preset-jest 29.6.3

Babel-preset-jest is a Babel preset that packages all Jest plugins. Designed to streamline your JavaScript testing process, this preset is smoothly incorporated when using babel-jest. Bundling all Jest plugins together, it simplifies the configuration process and boosts the efficiency of your development workflow.

Incorporating babel-preset-jest in your project is as simple as you running an install command in your terminal. To install the preset, open your terminal and type:

$ npm install --save-dev babel-preset-jest

Once installed, you can use babel-preset-jest through different ways:

1. Via babel.config.js (Recommended): Include 'jest' in the presets array of your Babel configuration file as shown below:

module.exports = {
  presets: ['jest'],
};

2. Via CLI: You can also use babel-preset-jest from the command line interface (CLI) as follows:

$ babel script.js --presets jest

3. Via Node API: If you want to use babel-preset-jest through the Node API, you can do so like this:

require('@babel/core').transform('code', {
  presets: ['jest'],
});

All of these methods provide an easy way to utilize babel-preset-jest in your project for testing JavaScript code.

The primary source of documentation for babel-preset-jest is its GitHub page, available at https://github.com/jestjs/jest. On this page, you'll find a comprehensive guide to using the package, including installation instructions, usage examples, and any additional information that's necessary to fully utilize babel-preset-jest in your projects. It's a one-stop resource for developers looking to understand and leverage the capabilities of this tool.