batch_array.js

/*
    When looping Multiple items from a SharePoint List
    and You want to render them on UI into individual rows
    containing only a specific number of columns. :)
*/


$(function() {
    var $render = function (myarr){
        console.dir(myarr); // rendering logic.
    };

    // Loop data.d.results Object from a SharePoint List.
    var lsItems = [
        11, 21, 31, 41, 51, 61, 71, 81, 
        19, 13, 10, 20, 30, 40, 50, 60
    ],$rowItems = [];

    // 4 here is the Number of columns you want per row on your UI.
    for(var $var = 0; $var < lsItems.length; $var++){
        if($var%4 === 0){
            var crtdArr = lsItems.slice($var, $var+4);
            $rowItems.push(crtdArr);
        }
    }
    $render($rowItems); // render on Browser.
});