19.3. Checking Whether Mobile Devices Support Floating-point Numbers and Operations: float() Function
The float() function returns a Boolean value indicating whether a mobile device supports floating-point numbers and operations. Here is an example:
var supportFloatType = Lang.float();
If the mobile device supports floating-point numbers and operations, the supportFloatType variable will contain the value true.
Note that if the return value of the float() function is false, the functions listed below will not work and all of them will return the invalid value if they are called:
All functions in the Float standard library
isFloat() function of the Lang standard library
parseFloat() function of the Lang standard library
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Contents at a Glance (Click Here for Full Table of Contents)
- 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
