数组去重
关键点在于indexOf()的使用,未查询到目标字符串时返回值为-1
//数组去重 var arr = [45, 12, 1, 2, 4, 45, 12, 3, 4, 5, 5, 6]; var newArr = []; for (var i = 0; i < arr.length; i++) { if (newArr.indexOf(arr[i]) === -1) { newArr.push(arr[i]); } } console.log(newArr);
标签:arr,12,indexOf,newArr,js,数组,var From: https://www.cnblogs.com/doubleyancode/p/16789336.html