# mocha > Execute Mocha JavaScript test runner - Run tests with default configuration or as configured in `mocha.opts` `mocha` - Run tests contained at a specific location `mocha {{folder/with/tests}}` - Run tests that match a specific grep pattern `mocha --grep {{^regex$}}` - Run tests on changes to JavaScript files in the current directory and once initially `mocha --watch` - Run tests with a specific reporter `mocha --reporter {{reporter}}`