As a build tool, we mainly use Webpack, but also have experience using Gulp and Grunt. With the release of Webpack 2, which has a strong community, extensive plugin system and huge flexibility, we advocate for using it on most our projects.
Front-end libraries and frameworks
By contrast, Angular comes with a lot of pre-defined structure and tells you how to lay out your app and components. It also enables developers to write more HTML-like code with React and is a great choice when prototyping app ideas quickly.