Summary

This chapter was all about understanding JavaScript in its most important role—that of browser language. JavaScript plays the role of introducing dynamism on the web by facilitating DOM manipulation and event management on the browser. We discussed both of these concepts with and without jQuery. As the demands of the modern web are increasing, using libraries such as jQuery is essential. These libraries significantly improve the code quality and efficiency and, at the same time, give you the freedom to focus on important things.

We will focus on another incarnation of JavaScript—mainly on the server side. Node.js has become a popular JavaScript framework to write scalable server-side applications. We will take a detailed look at how we can best utilize Node.js for server applications.