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parseFloat Method (Windows Scripting - JScript)

Returns a floating-point number converted from a string.


The required numString argument is a string that contains 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.

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

You can test for NaN using the isNaN method.

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