Backbone.js Viewīackbone Views allow you to organize all of your JavaScript event handlers while also providing a mechanism for adding dynamic HTML to your page through the optional use of JavaScript templates. Let’s take a look at each Backbone.js class object and determine if a “simple” application needs the functionality provided. In RosterEntry:, this.remove) In Roster:, this. Although your application may not need all of the functionality that Backbone.js provides you, 99% of all applications could use the functionality provided by one or more Backbone.js class objects. The remove methods on both the views are probably being called because youve bound to remove on both the model and the collection. Backbone.jsīackbone.js is a great client-side MV* JavaScript framework that provides structure to JavaScript applications by providing View, Model, Collection, Router, and Event class objects. Before you start screaming at your computer, let’s look at this argument in more detail using Backbone.js, one of the most popular JavaScript MV* frameworks, and custom Backbone.js builds. Much of that work consists of educating developers, who may not be JavaScript wizards (seriously not everyone can be Paul Irish, Addy Osmani, etc), that organizing their front-end codebases deserves their full time and attention.Ī common argument against using JavaScript MV* frameworks by non-JavaScript wizards is that most “apps” are not complex enough to warrent using these “bloated MV Whatever frameworks” (their words not mine). This intensified focus is helping the web become an even better place to spend your time.Īlthough 2012 has been a big win for the JavaScript community, there is still much work to be done. JavaScript codebase consistency, maintainability, and performance have never been scrutinized more. The influx of JavaScript MV* frameworks has created new design patterns that have promoted JavaScript as a language that you should care about. Remove the emoji from Cassandra and purge the assets from S3 and the image resizing provider. Although many people complain that the JavaScript MV* frameworks boom has created too many frameworks to choose from, which further divides the developer community, let’s look at the glass half full. POST /api/v1/collections/addposttocollectionmodposts. Var todos = am officially pronouncing 2012 as the year of the JavaScript MV* frameworks. Listen for changes on the underlying model and call The interesting thing is that React is figuring out by itself when to re-render a view and how to do this in the most efficient way. A component knows how to render its view and how to handle to the user’s interaction with it. With React, these view-controllers objects are called components. This object is responsible for deciding when to re-render the view and how to react to user input. React has some interesting concepts for JavaScript view objects that can be used to eliminate this one big problem I have with Backbone.js.Īs in most MVC implementations (although React is probably just a VC implementation), a view is one portion of the screen that is managed by a controlling object. This article describes an alternative to the Backbone.View component.Ī few days ago, Facebook and Instagram published a JavaScript framework of theirs: React. Backbone.js : Remove an item from a collection Ask Question Asked 11 years, 1 month ago Modified 10 years, 1 month ago Viewed 17k times 5 I'm using backbone.js to implement a buddy list aka Roster. I’m not saying that Backbone.js is bad in handling UI events, just that you have to care about too many things that are common to most web applications. If you are just a little sloppy, this leads to a slow frontend with an always increasing memory footprint. If you aren’t careful when removing or even just re-rendering views, you can seriously mess up event handling and prevent proper garbage collection. On the other hand, it always (and I hope that it’s not just me) seems to be a pain in the b*** to figure out the best way to implement a proper view lifecycle and to keep track of all registered event handlers. The Backbone.JS Pop() collection method is used to remove the models from the collection. Backbone.js is of great help by providing collections which aggregate model instances and by being able to sync these models with a server via RESTful APIs. Syntax collection.remove(models,options) Parameters. Although splitting model and view is a very basic idea in software development, it also is very powerful. It is used to remove a model or array of models from the collection. On the one hand, I like how it provides you with guidelines on how to structure your frontend code. Returns a reference to this Backbone object. I’ve been using Backbone.js in a couple of projects now and my feelings about it are quite diverse. Runs Backbone.js in noConflict mode, returning the Backbone variable to its previous owner.
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