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7.19.7 parseFloat Method

Converts strings into floating point numbers.
 

Syntax

parseFloat(numstring)

Arguments

numstring
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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