parseFloat

Description

Converts strings into floating-point numbers.

Syntax

parseFloat(string)

Parameters

string

The string to read and convert to a floating-point number.

Returns

The parseFloat method returns an numerical value equal to the number contained in string. If no prefix of string can be successfully parsed into a floating-point number, NaN (not a number) is returned.

Example

parseFloat("abc")    // Returns NaN.
parseFloat("1.2abc") // Returns 1.2.