MACROMEDIA FLASH 8-ACTIONSCRIPT 2.0 LANGUAGE - Lastindexof (String.lastindexof Method)

1132 ActionScript classes
lastIndexOf (String.lastIndexOf method)
public lastIndexOf(value:String, [startIndex:Number]) : Number
Searches the string from right to left and returns the index of the last occurrence of value
found before
startIndex within the calling string. This index is zero-based, meaning that the
first character in a string is considered to be at index 0--not index 1. If
value is not found, the
method returns -1.
Availability: ActionScript 1.0; Flash Player 5
Parameters
value:String - The string for which to search.
startIndex:Number [optional] - An integer specifying the starting point from which to
search for
value.
Returns
Number - The position of the last occurrence of the specified substring or -1.
Example
The following example shows how to use
lastIndexOf() to return the index of a certain
character:
var searchString:String = "Lorem ipsum dolor sit amet.";
var index:Number;
index = searchString.lastIndexOf("L");
trace(index); // output: 0
index = searchString.lastIndexOf("l");
trace(index); // output: 14
index = searchString.lastIndexOf("i");
trace(index); // output: 19
index = searchString.lastIndexOf("ipsum");
trace(index); // output: 6
index = searchString.lastIndexOf("i", 18);
trace(index); // output: 6
index = searchString.lastIndexOf("z");
trace(index); // output: -1
See also
indexOf (String.indexOf method)