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JAVASCRIPT Pam Kahl | COM 585 | Spring 2010
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What It Is JavaScript is:
Considered the scripting language for the web Client-side scripting language for web pages Is to the browser what ASP and PHP are to servers Relatively easy to use Underlying functionality for HTML-based programs Adobe Reader Adobe Dreamweaver CS3 Dialect of ECMAScript JavaScript, Jscript, ActionScript Not Java
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History Developed by Brendan Eich @ Netscape Mocha!
no wait LiveScript! no really JavaScript! Launched Dec 1995, NS v2.0 Marketing partnership with Sun Renaissance thanks to Ajax
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What It Does Basic functionality
Text, pop up boxes, contextual content Enhances dynamics and interactive features Calculations Interactive games Security passwords Cookies
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Examples <html> <body> <script type="text/javascript"> document.write("Hello World!"); </script> </body> </html> Hello World! =
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Why Important For non-programmers Enables engaging site functionality
Cookies allow for customized experiences Easy to update
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