A solution for Single Element in a Sorted Array in Javascript

  • 0

    When I tried to resolve the problem "540.Single Element in a Sorted Array" in Javascript, it did work in my web browser, but leetcode.com showed Internal Error. So I clicked Solution button and it showed that they didn't have an answer at that moment.Here is my solution:

    var singleNonDuplicate = function(nums) {
        var dict ={}
        for (var i = 0; i < nums.length; i ++){
            if(dict[nums[i]] == undefined){
                dict[nums[i]] = 1
            }else {
                dict[nums[i]] ++
        for (var o in dict) {
            if (dict[o] === 1){
                return new Number(o)

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