People will often ask what is so important about using tools such as Jade and Sass. To answer this, consider high-traffic websites such as blogs or e-commerce websites. With millions of hits a day, these websites must minimize the amount of HTTP requests required to load the page. This can be done through concatenating CSS and JavaScript files. Additionally, there exists a need to minimize the size of downloaded files to optimize the page load speed even further. Minification aids in this respect.
With web developers moving faster than ever, new changes are made to JavaScript and CSS repositories every day. Thus, the use of Grunt helps to optimize development efficiency by automating away large portions of the DevOps integration process.