parseFloat()
685
parseFloat()
Availability
Flash Player 5.
Usage
parseFloat(
string:String
)
: Number
Parameters
string
The string to read and convert to a floating-point number.
Returns
A number or
NaN
(not a number).
Description
Function; 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.
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
See also
NaN
,
parseInt()
CHAPTER 2
ActionScript Language Reference
Summary of Contents for FLASH MX 2004-ACTIONSCRIPT LANGUAGE
Page 1: ...ActionScript Language Reference...
Page 20: ...20 Contents...
Page 24: ...24 Chapter 1 Introduction...
Page 145: ...Button onKeyDown 145 See also Button onKeyUp...
Page 186: ...186 Chapter 2 ActionScript Language Reference See also Camera onActivity Camera setMotionLevel...
Page 202: ...202 Chapter 2 ActionScript Language Reference See also break default strict equality switch...
Page 282: ...282 Chapter 2 ActionScript Language Reference See also break continue while...
Page 383: ...LoadVars addRequestHeader 383 See also XML addRequestHeader...
Page 388: ...388 Chapter 2 my_lv load place a valid URL pointing to a text file here...
Page 463: ...Microphone setRate 463 See also Microphone rate...
Page 469: ...Microphone silenceLevel 469 See also Microphone gain Microphone setSilenceLevel...
Page 480: ...480 Chapter 2 ActionScript Language Reference See also Mouse addListener...
Page 529: ...MovieClip globalToLocal 529 See also MovieClip getBounds MovieClip localToGlobal...
Page 612: ...612 Chapter 2 ActionScript Language Reference See also MovieClipLoader onLoadStart...
Page 623: ...NetConnection class 623 See also NetStream class Video attachVideo...
Page 649: ...Number 649 See also NaN Number class...
Page 679: ...on 679 on release trace X this _x trace Y this _y stopDrag See also onClipEvent...
Page 683: ...onUpdate 683 buttonLabel textColor my_mc labelColor...
Page 788: ...788 Chapter 2 ActionScript Language Reference See also private public...
Page 1001: ...Video height 1001 my_mc _height my_mc my_video height See also MovieClip _height Video width...
Page 1022: ...1022 Chapter 2 ActionScript Language Reference See also XML createElement...
Page 1057: ...XML xmlDecl 1057 See also XML docTypeDecl XML toString...
Page 1070: ...1070 Chapter 2 ActionScript Language Reference...