Revision: 37099
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at December 3, 2010 22:59 by burnandbass
Initial Code
//The static methods only:
//SHUFFLE
/*
array - array to shufle
startIndex = the start index of the element
endIndex = int, should be array.length-1 to shuffle all
*/
public static function shuffle(array:Array, startIndex:int = 0, endIndex:int = 0):Array{
if(endIndex == 0){
endIndex = array.length-1;
}
for (var i:int = endIndex; i>startIndex; i--) {
var randomNumber:int = Math.floor(Math.random()*endIndex)+startIndex;
var tmp:* = array[i];
array[i] = array[randomNumber];
array[randomNumber] = tmp
}
return array;
}
//Random element
static public function random(array:Array):*{
return array.length ? array[Math.floor(Math.random()*array.length)] : null
}
//removes elemnt from array
public static function remove(array:Array, elem:*):Array {
return array.filter(function(item:*, index:int, arr:Array):Boolean{ return item != elem })
}
/**
*Returns last element of the array
**/
public static function last(array:Array):*{
return array.length ? array[array.length-1] : null;
}
//previuos element of array
static public function previous(array:Array, elem: *):*{
return array.indexOf(elem) >=0 ? array[array.indexOf(elem)-1] : null;
}
//next element of array (array, element)
static public function next(array:Array, elem: *):*{
return array.indexOf(elem) < array.length-1 ? array[array.indexOf(elem)+1] : null;
}
Initial URL
Initial Description
Sometimes you need special array functions, not build in AS3. Special ArrayUtils class with some static methods can help us :)
Initial Title
Usefull Array utils - SHUFFLE, Random, remove,
Initial Tags
array
Initial Language
ActionScript 3