Microsoft® JScript™ parseFloat Method | Language Reference Version 1

See Also Applies To

##### Description

> Converts strings into floating-point numbers.

##### Syntax

> parseFloat(numstring)

> The numstring argument is a string that contains a floating-point number.

##### Remarks

> 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.

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

You can test for NaN using the isNaN method.

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