問題描述:
開發中在使用多級可選tree樹形菜單時,可能會遇到需要將有重複字符串數組去重並轉換成字符串的情況,舉個例子如下:
原數組:
["5","10","11","5,10","5,10,11"]
目標字符串:
"5,10,11"
解決思路:
1. 將數組轉換成字符串;
2. 將字符串轉換成數組再排序;
3. 對排序的結果去重;
4. 將去重後的數組轉換成字符串
問題解決:
var arr= ["5","10","11","5,10","5,10,11"]
var strs = temp.join(",");
arr = strs.split(",");
arr.sort(); //排序
for(var i=arr.length-1;i>0;i--){
if(arr[i]==arr[i-1]){
arr.splice(i,1); //數組去重
}
}
strs= arr.join(",");