Angular Simplest Pagination

angular_pagination.js

var perPage = 10;
var items = [];

// init call
$scope.pagination = pagination(items, perPage, 1);

// subsequent calls (usually a method inside controller for ng-click)
this.showPage = function (page) {
    $scope.pagination = pagination($scope.pagination.items, perPage, page);
};

// reference
function pagination(items, perPage, curPage) {
  
    var pagesCount = Math.floor((items.length%perPage===0) ? items.length/perPage : items.length/perPage+1);
    curPage = (Number.isInteger(curPage) && curPage>=1 && curPage<=pagesCount) ? curPage : 1;

    var r = {
        curPage : curPage,
        start : curPage*perPage-perPage,
        finish : curPage*perPage-1,
        length : items.length,
        perPage : perPage,
        pagesCount : pagesCount,
        items : items,
        list : [],
        pages : []
    };

    r.list = r.items.slice(r.start,r.finish+1);
    for(var i=0; i<pagesCount; i++) { r.pages[i] = i+1; }

    console.log(r);
    return r;
}

Super simple example of template:
<button ng-repeat="p in pagination.pages" ng-click="c.showPage(p)" class="btn btn-warning" style="margin-right: 10px;">{{p}}</button>