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 function uniqueArray(data){ 
					   data = data || [];  
					   var a = {};  
					   for (var i=0; i<data.length; i++) {  
					       var v = data[i];  
					       
					     
					            a[v] = 1;  
					      
					       console.log(a)
					   };
					  
					   data.length=0;  
					   for (var i in a){ 
					   console.log(data.length) 
					        data[data.length] = i;  
					   }  
					   console.log(data) 
					   return data; 
					   
					  
						}  
						 var arrData = [1,3,5,7,7,8,9,3,7,10,8];
						uniqueArray(arrData);
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原文地址:http://www.cnblogs.com/djdliu/p/5364989.html