从事了一段时间的前端开发,今天写了一个数组去重,并统计最多项的方法,目前只支持数组的项都是数字. 由于本人能力有限,希望能得到网友的指正!如有问题或者更好的实现思路,也欢迎大家和我讨论!代码如下: function getMax(arr){ var obj = {}, l = arr.length, key = [], val = []; for(var i = 0;i<l;i++){ !obj[arr[i]] ? obj[ar…
Given a sorted array nums, remove the duplicates in-place such that duplicates appeared at most twice and return the new length. Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra mem…