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POCalling method once but it executed many times in backbone
 

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    <p>Here my class :</p> <pre><code>function Cart(){ if (typeof Cart.instance === 'object') { return Cart.instance; } Cart.instance = this; //the other method.... var self = this; var items = window.localStorage.getItem(Cart.storageName); this.addToCart = function(item){ if (!(items instanceof Array)) items = []; var itemIndex = getItemIndexById(items, item.ID); if(typeof(itemIndex) === 'number'){ items[itemIndex].QuantityInCart++; } else{ item.QuantityInCart = 1; items.push(item); } window.localStorage.setItem(Cart.storageName, serializeObjToJSON(items)); }; } Cart.storageName = "Cart"; </code></pre> <p>Then I call <code>addToCart</code> function in <code>Home</code> view when I click on <code>addToCart</code> button:</p> <pre><code>define(["jquery" , "underscore" , "backbone" , "text!templates/Home/homePanel.html", "text!templates/Item/itemTemplate.html" ],function($ , _ , Backbone , HomePanel, ItemTemplate){ var promotionItem = _.template(ItemTemplate); var homePanel = _.template(HomePanel); var HomeView = Backbone.View.extend({ initialize: function() { myCart1.updateQtyLabel("qtyCart"); window.localStorage.setItem("User",serializeObjToJSON(customer)); }, el: '#webbodycontainer', events : { "click #addToCart" : function(){ myCart1.addToCart(newItem); myCart1.updateQtyLabel("qtyCart"); $("#containernewpromotion").html(promotionItem); } }, render : function(){ this.$el.html(homePanel); $("#containernewpromotion").html(promotionItem); } }); return HomeView; }); </code></pre> <p>But when I click to the other view, then back to <code>Home</code> view, and click <code>addToCart</code> button again, the item is increasing 2 times (<code>addToCart</code> method executes two time). If I continue to another view and click on the button again , <code>addToCart</code> method executes 3 times.... Always +1 of <code>addToCart</code> method executing when I go to other view and come back to click on add to cart button.</p> <p>Any idea what could be causing this. Thanks. </p>
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    1. COCheck that you're not instantiating a `HomeView` each time you go back to home.
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    2. CO@Loamhoof: excuse me, what did you mean here? I just back to `HomeView` on click `<a href='#'>`.
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    3. COAre you removing the View? If not it makes perfect sense since your events are not being unbound. When navigating from view to view, make sure you call view.remove(). This will cleanup events and remove the view from the dom.
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