Chapter 4. Client-Side Coding Using JavaScript
In this lesson we introduce the concept of client-side scripting using JavaScript. Client-side scripts are embedded in web pages and executed by a JavaScript interpreter built into the browser. They add extra functionality to an otherwise static HTML page.
About JavaScript
JavaScript was developed from a language called LiveScript, which was developed by Netscape for use in its early browsers. JavaScript source code is embedded within the HTML code of web pages and interpreted and executed by the browser when the page is displayed.
Using JavaScript, you can add extra functionality to your web pages. Examples include
Change the way page elements are displayed
Add animation and other image effects
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