User Guide

86 ActionScript language elements

Returns

Number - The ASCII code number of the specified character.

See also

String, charCodeAt (String.charCodeAt method)

parseFloat function

parseFloat(string:String) : Number

Converts a string to a floating-point number. The function reads, or parses, and returns the

numbers in a string until it 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. White

space preceding valid integers is ignored, as are trailing nonnumeric characters.

Availability: ActionScript 1.0; Flash Player 5

Parameters

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

Returns

Number - A number or NaN (not a number).

Example

The following examples use the

parseFloat() function to evaluate various types of numbers:

trace(parseFloat("-2")); // output: -2

trace(parseFloat("2.5")); // output: 2.5

trace(parseFloat(" 2.5")); // output: 2.5

trace(parseFloat("3.5e6")); // output: 3500000

trace(parseFloat("foobar")); // output: NaN

trace(parseFloat("3.75math")); // output: 3.75

trace(parseFloat("0garbage")); // output: 0