js 两数组去除重复数值的实例

{ for (var i = 0; i < arr1.length; i++) { for (var j = 0; j < arr2.length; j++) { if (arr1[i] === arr2[j]) { arr1.splice(i,1); //利用splice函数删除元素，从第i个位置，截取长度为1的元素 } } } //alert(arr1.length) for (var i = 0; i < arr2.length; i++) { arr1.push(arr2[i]); } return arr1; }