parseFloat Method
Returns a floating-point number converted from a string.
function parseFloat(numString : String) : Number
Arguments
- numString
Required. A string that represents a floating-point number.
Remarks
The parseFloat method returns a 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.
You can test for NaN using the isNaN method.
Example
In following example, the parseFloat method is used to convert two strings to numbers.
parseFloat("abc") // Returns NaN.
parseFloat("1.2abc") // Returns 1.2.