N-R > parseFloat
parseFloatSyntax
parseFloat(
string
);
Arguments
string
The string to parse and convert to a floating-point number.
Description
Function; converts a string to a floating-point number. The function parses and returns the numbers in the string, until the parser reaches a character that is not a part of the initial number. If the string does not begin with a number that can be parsed, parseFloat
returns NaN
or 0. White space preceding valid integers is ignored, as are trailing non-numeric characters.
Player
Flash 5 or later.
Example
The following are examples of using parseFloat
to evaluate various types of numbers:
parseFloat("-2")
returns -2
parseFloat("2.5")
returns 2.5
parseFloat("3.5e6")
returns 3.5e6,
or 3500000
parseFloat("foobar")
returns NaN