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JAVASCRIPT

JAVASCRIPT. Pam Kahl | COM 585 | Spring 2010. 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

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JAVASCRIPT

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  1. JAVASCRIPT Pam Kahl | COM 585 | Spring 2010

  2. 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

  3. 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

  4. What It Does • Basic functionality • Text, pop up boxes, contextual content • Enhances dynamics and interactive features • Calculations • Interactive games • Security passwords • Cookies

  5. Examples <html> <body> <script type="text/javascript"> document.write("Hello World!"); </script> </body> </html> Hello World! = http://www.w3schools.com/js/tryit.asp?filename=tryjs_alert http://www.w3schools.com/js/tryit.asp?filename=tryjs_imagemap http://www.w3schools.com/js/tryit.asp?filename=try_dom_window_resizeto

  6. Why Important • For non-programmers • Enables engaging site functionality • Cookies allow for customized experiences • Easy to update

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