How JavaScript handles a lot of data, such as paging switch

Requirements: A user list data, if the corresponding list of data is greater than 10, every 10 saved to a two-dimensional array, less than 10 are still placed in the tail of the two-dimensional array

Useful: analog paging, or partial refresh

varobj=[        {            "List": [{a:1},{a:2},{a:3},{a:4},{a:5},{a:6}, {a:7},{a:8},{a:9}            ]        },        {            "List": [{a:1},{a:2},{a:3},{a:4},{a:5},{a:6}, {a:7},{a:8},{a:9},{a:10},{a:11},{a:12}, {a:13},{a:14},{a:15},{a:16},{a:17}, {a:18},{a:19},{a:20},{a:21}            ]        },        {            "List": [{a:1},{a:2},{a:3},{a:4},{a:5},{a:6}, {a:7},{a:8},{a:9},{a:10},{a:11},{a:12}, {a:13},{a:14},{a:15},{a:16},{a:17}, {a:18},{a:19},{a:20},{a:21},{a:22}, {a:23},{a:24},{a:25},{a:26},{a:27}, {a:28},{a:29},{a:30},{a:31}            ]        },        {            "List": [{a:1},{a:2},{a:3},{a:4},{a:5},{a:6}, {a:7},{a:8},{a:9},{a:10},{a:11},{a:12}, {a:13},{a:14},{a:15},{a:16},{a:17}, {a:18},{a:19},{a:20},{a:21},{a:22}, {a:23},{a:24},{a:25}            ]        },        {            "List": [{a:1},{a:2},{a:3},{a:4},{a:5},{a:6}, {a:7},{a:8},{a:9},{a:10},{a:11},{a:12}, {a:13},{a:14},{a:15},{a:16},{a:17}, {a:18},{a:19},{a:20},{a:21},{a:22}, {a:23},{a:24},{a:25}            ]        }    ]; //Each list may have a length of 0, no limit    //if the corresponding list.length>10, put the corresponding list every 10 in a two-dimensional array, less than 10 in the tail of the two-dimensional array,    //For example, the third one has 31, and the third list is replaced by:    //  [    //[{a:1},{a:2}: {a:10}],    //[{a:11},{a:12} ... {a:20}],    //[{a:21}: {30}],[{a:31}]    //  ]    //    //How do I get all the two-dimensional arrays at once?     functionresetdate (arr,num) {//1 length of entire array        varleng=arr.length;  for(vari=0;i<leng;i++){            //2 each list            varinnerlist=arr[i].list; //Console.log (arr);            //3 Number of each list, i.e. Lenth            varInnerlength=innerlist.length; //if more than 10            if(innerlength!=0&&innerlength>num) {                //if the length of the outer array of the two-dimensional array is greater than 10: max, you need to take the entire                varOutermaxlen=math.ceil (Innerlength/num);//defines the outer layer of a two-dimensional array on each object                //Arr[i].outer=array (Outermaxlen);Arr[i].outer=[]; varSlicenum = 0, Resindex = 0; //Console.log (Result)                 while(Slicenum <innerlength) {Arr[i].outer[resindex+ +] = Innerlist.slice (slicenum, slicenum + =num); }                //need to use Arr.slice (start,end);Console.log (Arr[i].outer); }}} resetdate (obj,10);//law two,, less than 10 a little bit of a bug (said not to understand), from: The BA GodfunctionAdapter (data) {function_splice (list,i) {i= I | | 1; List.push (List.splice (0,10)); List.length>10? _splice (list,++i): List.push (List.splice (0,list.length-i)); } Data.foreach (function(v) {_splice (v.list); });} Adapter (obj); Console.log (obj);

How JavaScript handles a lot of data, like a paging switch