数组排序

        /*一维数组排序*/
        var arr=[12,3,34,5,2]
        var arr1=arr.sort((a,b) => {
            return a-b;
        })
        console.log(arr1);

        /*二维数组排序*/
        var arr = [[1,34],[456,2,3,44,234],[4567,1,4,5,6],[34,78,23,1]];

        function sortArray(arr){
            var goNext=true;
            var entries=arr.entries();
            while(goNext){
                var result = entries.next();
                if(result.done!=true){
                    console.log(result.value)
                    result.value[1].sort((a,b)=>a-b);
                    goNext=true;
                }else{
                    goNext=false;
                }
            }
            return arr;
        }
        console.log(sortArray(arr));