20.3. Extracting the Query String of an URL: getQuery() Function
The getQuery() function helps us extract the query string of an URL. Its syntax is:
URL.getQuery(url);
If there is no query string in url, getQuery() returns an empty string. If any error occurs, getQuery() returns invalid. For example, if url is not an URL or if the syntax of url is not correct, invalid is returned.
The following WMLScript example demonstrates the use of the getQuery() function:
w
= URL.getQuery("http://www.developershome.com/");
x =
URL.getQuery("http://www.developershome.com/tutorial_eg.asp?q1=abc&q2=123");
y
= URL.getQuery("tutorial_eg.asp?q1=abc&q2=123");
z
= URL.getQuery("tutorial_eg.asp?q1=abc&q2=123#card1");
After the execution of the above WMLScript code, w contains an empty string while x, y and z have the string value "q1=abc&q2=123".
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- 1. WMLScript Introduction
- 2. Hello World WMLScript Example
- 3. Compiling WMLScript Code
- 4. WMLScript Language Rules
- 5. Defining WMLScript Functions
- 6. Calling WMLScript Functions
- 7. WMLScript Variables
- 8. WMLScript Data Types
- 9. WMLScript Variables Vs WML Variables
- 10. Passing Arguments to Functions By Value and By Reference
- 11. WMLScript Operators
- 12. WMLScript Conditional Statements
- 13. WMLScript Looping Statements
- 14. WMLScript Standard Libraries Overview
- 15. WMLScript WMLBrowser Standard Library
- 16. WMLScript Dialogs Standard Library
- 17. WMLScript String Standard Library
- 18. WMLScript Float Standard Library
- 19. WMLScript Lang Standard Library
- 20. WMLScript URL Standard Library
- 21. WMLScript Example: Validating Form Data
