Applies to: Global Object
The parseFloat method is use to get a floating-point number converted from a string
Syntax
parseFloat(numstring)
The numstring argument is a string that contains a floating-point number.
Return value
Returns a floating-point number converted from a string
Example
The parseFloat method returns an numerical value equal to the number contained in numstring. If no prefix of numstring can be successfully parsed into a floating-point number, NaN (not a number) is returned.
document.write(parseFloat("abc"));// Returns NaN.
document.write(parseFloat("1.2abc"));// Returns 1.2.
|
You can test for NaN using the isNaN method.
 To run the code above, paste it into JavaScript Editor, and click the Execute button
See also: isNaN Method, parseInt Method, String Object |
