As soon as we start writing code for HTML, CSS, and JavaScript, we need a code editor. A code editor is an indispensible tool to develop websites. Technically, you will only need text editors such as TextEdit in OS X or Notepad in Windows to write and edit code. However, by using a code editor, your eyes will be less irritated.

Similar to Microsoft Word, which has been specially designed to make word and paragraph formatting more intuitive, a code editor is designed with a set of special features that improves code writing experiences such as syntax highlighting, auto-completion, code snippets, multiple line selection, and supporting a large number of languages. Syntax highlighting will display code in different colors, enhancing code readability and make it easy to find errors in the code.

My personal preference for a code editor, and the one that I will use in this book, is Sublime Text (http://www.sublimetext.com/). Sublime Text is a cross-platform code editor available...