# JavaScript Development JavaScript is built and minified using gulp. Therefore you need to install **Node.js 6+ and npm**. Then use npm to install **gulp-cli**: sudo npm -g install gulp-cli Then install the local dependencies by running: npm install ## Tasks The following tasks are available: * **Build the JavaScript**: gulp * **Watch for changes and build JavaScript**: gulp watch * **Run JavaScript unit tests**: gulp karma * **Watch for changes and run JavaScript unit tests**: gulp watch-karma * **Watch for changes and run PHP unit tests**: gulp watch-phpunit