Flash初哥

	//Author  http://www.theplanzero.com
	//Version 1.1
 
	public class ArrayUtility
	{
		public function ArrayUtility(){}
		static public function removeNull(input:Array):Array
		{
			var output:Array = new Array();
			for (var i:int = 0; i <= input.length-1; i++)
			{
				if (input[i] != null)
					output.push(input[i]);
			}
			return output;
		}
 
		//echo all elements in an array with the arrayName
		static public function printWithName(arrayName:String,input:Array):void
		{
			for (var i:int  = 0 ; i <= input.length-1; i++)
			{
				trace(arrayName + "[" + i + "] " + input[i]);
			}
		}
 
		//echo all elements in an array 
		static public function print(input:Array):void
		{
			for (var i:int  = 0 ; i <= input.length-1; i++)
			{
				trace("[" + i + "] " + input[i]);
			}
 
		}
 
		//check if elements are identical ( no considering order )
		static public function isElementIdentical(A1:Array,A2:Array):Boolean
		{
			if ( A1.length != A2.length )  return false;
			var B1:Array = A1.concat();
			var B2:Array = A2.concat();
			B1.sort();
			B2.sort();
			for (var i:int = 0 ; i <= B1.length-1; i++)
			{
				if (B1[i] != B2[i])
					return false;
			}
			return true;
		}
 
		//check if elements are identical ( no considering order ) and showing each comparing step
		static public function isElementIdenticalShowTrace(A1:Array,A2:Array):Boolean
		{
			if ( A1.length != A2.length )  return false;
			var B1:Array = A1.concat();
			var B2:Array = A2.concat();
			B1.sort();
			B2.sort();
			for (var i:int = 0 ; i <= B1.length-1; i++)
			{
				if (B1[i] != B2[i])
				{
					trace("A1[" +  i + "]: " + B1[i] + "  A2[" +  i + "]: " + B2[i]);
					return false;
				}
			}
			return true;
		}
 
		//search the first occur of request in the Array and resutn the index , return -1 if not found
		static public function search(input:Array,request:Object):int
		{
			for ( var i:int = 0 ; i <= input.length-1; i++ )
				if ( input[i] == request )
					return i;
			return -1;
		}
	}