# babel-preset-jest > Babel preset for all Jest plugins. This preset is automatically included when using [babel-jest](https://github.com/facebook/jest/tree/master/packages/babel-jest). ## Install ```sh $ npm install --save-dev babel-preset-jest ``` ## Usage ### Via `.babelrc` (Recommended) **.babelrc** ```json { "presets": ["jest"] } ``` ### Via CLI ```sh $ babel script.js --presets jest ``` ### Via Node API ```javascript require('babel-core').transform('code', { presets: ['jest'], }); ```