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There are two types of comments in JavaScript: n // to begin a short comment that does not exceed the length of one line n /* and */ to enclose a comment of any length The JavaScript interpreter ignores the opening HTML comment tag in JavaScript code.

JavaScript is a scripting language that is embedded into HTML documents in order to add significant functionality to those web pages. For this reason, a working knowledge of HTML is integral to understanding and using JavaScript. HTML, or Hypertext Markup Language, is a relatively simple scripting language that web browsers can use to display web pages. The beautiful part of HTML is that you don’t need any special software to do it; HTML can be written in any text editor, including the Windows Notepad.

Because the portion is evaluated first, some developers choose to place their JavaScript here. A single HTML document may contain any number of scripts. You can place some of the scripts in the portion and others in the portion of the page. ] Conventions JavaScript syntax is very similar to C, C++, and Java. It includes functions, expressions, statements, operators, and more. Using the Semicolon The JavaScript interpreter does not pay any attention to carriage return characters in the source.

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Advanced Javascript by Chuck Easttom


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