FUNCTION:  Lang.isFloat
Lang.isFloat(value)
 
The Lang.isFloat function returns a boolean value that indicates whether a string value can be converted into a floating-point number using the Lang.parseFloat function. A true signifies that you can convert. A false signifies that you cannot convert.
 
You can use the Lang.float function to determine if the browser supports floating-point arithmetic operations. Also, the Float Library contains several functions that are designed to be used with floating-point numbers.
 
The value parameter is the string value that you need converted into a floating-point number.
 
Code for IsFloatExample.wml
<?xml version="1.0"?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN"
"http://www.WAPforum.org/DTD/wml_1.1.xml">
<wml>

<card id="card1">
   <p>
   isFloat example
   </p>
   <do type="accept">
      <go href="IsFloatExample.wmls#findisfloat( )" />
   </do>
</card>

<card id="card2">
<p>
   can convert = $(isfloattest)
</p>
</card>

</wml>
 
Code for IsFloatExample.wmls
extern function findisfloat( )
{
   var str = Dialogs.confirm("Enter a string", "");
   var result = Lang.isFloat(str);
   WMLBrowser.setVar("isfloattest", result);
   WMLBrowser.go("IsFloatExample.wml#card2");
};


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