parseFloat Method


function parseFloat(numString : String) : Number

numString: Required. A string that represents a floating-point number.

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.

In following example, the parseFloat method is used to convert two strings to numbers.

В	Copy Code
parseFloat("abc") // Returns NaN. parseFloat("1.2abc") // Returns 1.2.

Version 1

Applies To:

Global Object

Reference

isNaN Method
parseInt Method
String Object

Arguments

Remarks

Example

Requirements

Applies To:

See Also

Reference