angular-repeat-n.functions.js

    var decreaseNumberOfRepeatedElements = function (bothValues, newInt, ngRepeatScope) {
        var limit = bothValues ? newInt : 0;
        ngRepeatScope.last = ngRepeatScope.elems[limit];
        for (var i = ngRepeatScope.elems.length - 1; i > limit; i -= 1) {
            ngRepeatScope.elems[i].remove();
            ngRepeatScope.elems.pop();
        }
    };

    var increaseNumberOfRepeatedElements = function (newInt, ngRepeatScope, ngRepeatTransclude) {
        var i = ngRepeatScope.elems.length - 1;
        for (i; i < newInt; i += 1) {
            var childScope = ngRepeatScope.$new();
            childScope.$index = i;
            ngRepeatTransclude(childScope, function (clone) {
                ngRepeatScope.last.after(clone);
                ngRepeatScope.last = clone;
                ngRepeatScope.elems.push(clone);
            });
        }
    };

    var nEntriesChanged = function (ngRepeatTransclude, ngRepeatScope, $parse, newValue, oldValue) {
        var newInt = parseInt(newValue)
          , oldInt = parseInt(oldValue)
          , bothValues = !isNaN(newInt) && !isNaN(oldInt)
        if (isNaN(newInt) || (bothValues && newInt < oldInt)) {
            decreaseNumberOfRepeatedElements(bothValues, newInt, ngRepeatScope);
        }
        else {
            increaseNumberOfRepeatedElements(newInt, ngRepeatScope, ngRepeatTransclude);
        }
    };

    app.directive('ngRepeatN', ['$parse', function ($parse) {
        return {
            restrict: 'A',
            transclude: 'element',
            replace: true,
            scope: true,
            link: function (scope, element, attrs, ctrl, $transclude) {
                scope.last = element;// the element to insert after
                scope.elems = [element];// list of elements in the repeater
                var getter = $parse(attrs.ngRepeatN);// a getter function to resolve the parameter
                scope.$watch(function () {
                    return parseInt(attrs.ngRepeatN) || getter(scope);
                }, function (newValue, oldValue) { nEntriesChanged($transclude, scope, $parse, newValue, oldValue) });
            }
        };