module - return some methods outside

module - return some methods outside

   var ourModule = (function(){

        var _animals = ['dog', 'cat', 'bird'];
        var _addNewElement = function (newAnimal) {
                var elementToAdd;
                if (typeof newAnimal !== 'string') {
                    elementToAdd = document.querySelector('#animal').value();
                } else {
                    elementToAdd = newAnimal;
                }

                if (elementToAdd !== '') {
                    _animals.push(elementToAdd);
                }
            };
            var _displayList = function () {
                var list = document.querySelector('#list');
                if (list == null) {
                    list = document.createElement('ul');
                    list.id = list;
                    document.querySelector('body').appendChild(list);
                }
                list.innerHTML = '';
                _animals.forEach(function (el, i) {
                    var element = document.createElement('li');
                    element.innerHTML = el;
                    list.appendChild(element);
                });
            };
           var _bindEvents = function () {
                document.querySelector('#number').addEventListener('click', addNewElement.bind(this));
                document.querySelector('#show').addEventListener('click', displayList.bind(this));
            };
           var _init = function () {
                bindEvents();
                displayList();
            };
           //zwraca dostępne metody
           return {
               init: _init,
               addNewElement: _addNewElement,
               displayList: _displayList
           }
    })();