September 2003
Intermediate to advanced
944 pages
33h 46m
English
Content preview from Practical Web Technologies
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21.4. Using WMLScript with WML pages
21.4.1. What is WMLScript and how does it work?
Basically, WMLScript is a client-side script language based on ECMAScript and dedicated for low-bandwidth devices such as a mobile phone. Many people may refer to WMLScript as the ECMAScript dialect for wireless applications. Unlike ECMAScript, WMLScript functions or statements are not defined inside a WML page. Instead, all WMLScript language or statements are stored in another file with file extension .wmls (Wireless Markup Language Script).
When your WML page calls a WMLScript function, you call the reference of the function by URL. When a function of WMLScript is called, the script is compiled into byte code by the WAP gateway and then sent to the micro-browser ...
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