When we develop web application, if we write or modify the HTML structure, CSS style and javascript, we need to compile the code and deploy it, and then refresh page, finally we can see our changes. There are so many steps. So could we skip these steps and just see our changes on page directly when we save the codes. Yes, I can answer you now.
In order to achieve this goal, we need to install Guard, LiveReload and related stuff, configure it in our web application project.