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Chapter 14. Scripting and DHTML > What Is JavaScript?

What Is JavaScript?

There is a common misconception that JavaScript is somehow based on the Java language developed by Sun Microsystems. This is really not the case. Although there are some similarities between the syntax of JavaScript and the Java language, they're inherently different languages. JavaScript is used for the most part as a client-side scripting language that works alongside the HTML on a page. Java is more flexible in that it has built-in capabilities for producing its own graphics and sound, but has higher overhead.


The most popular language for creating client-side scripts is called JavaScript. JavaScript was originated by Netscape in its original Navigator browser, and was later co-opted by Microsoft as JScript for Internet Explorer (along with Microsoft's proprietary scripting language, VBScript).


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