User Guide

String 1137
Availability: ActionScript 1.0; Flash Player 5
Parameters
value:String - The initial value of the new String object.
substr (String.substr method)
public substr(start:Number, length:Number) : String
Returns the characters in a string from the index specified in the start parameter through the
number of characters specified in the
length parameter. The substr method does not change
the string specified by
my_str; it returns a new string.
Availability: ActionScript 1.0; Flash Player 5
Parameters
start:Number - An integer that indicates the position of the first character in my_str to be
used to create the substring. If
start is a negative number, the starting position is determined
from the end of the string, where the -1 is the last character.
length:Number - The number of characters in the substring being created. If length is not
specified, the substring includes all the characters from the start to the end of the string.
Returns
String - A substring of the specified string.
Example
The following example creates a new string,
my_str and uses substr() to return the second
word in the string; first, using a positive
start parameter, and then using a negative start
parameter:
var my_str:String = new String("Hello world");
var mySubstring:String = new String();
mySubstring = my_str.substr(6,5);
trace(mySubstring); // output: world
mySubstring = my_str.substr(-5,5);
trace(mySubstring); // output: world