方法一: 新建一数组,遍历传入数组,值不在新数组就push劲新数组里 ie8以下不支持indexOf方法 var newArr=[]; var arr=[1,2,"2",4,9,"a","a",2,3,5,6,5]; for(var i=0;i<arr.length;i++){ if(newArr.indexOf(arr[i])<0){ newArr.push(arr[i
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