Getting Started With EmberJS - andy matthews
JavaScript heavy applications can be found all over the place these days. As JavaScript applications become more and more complex, it's no longer acceptable to have a long chain of jQuery callback statements, or even distinct functions called at various points through your app. JavaScript developers are slowly learning what traditional software programmers have known for decades. Organization and efficiency are important and can make the difference between an app that performs great, versus one that doesn't. So a number of JavaScript MVC frameworks like Backbone, Knockout, and Ember have sprung up to fill the void between beginner and intermediate developers, and hardcode programmers. They offer various features and functionality and will each of them will suit different people based on their needs. I consider myself a pretty good developer...by no means the best, but I'm skilled at taking existing technologies and forging them into something unique and of my own creation. Related Posts
Ember.js has everything I desire
Writing an Ember.js App From Scratch (Part 2) | Drew Schrauf
In part 1 of this tutorial we began to make a very simple todo app which used Ember to handle all of the logic. If you haven't read it yet, check it out! Our little todo app is now displaying a couple of prepopulated Todo items with a little counter at the bottom that shows the number of incomplete items. Obviously, a todo app isn't very useful if you can't add your own items to it so that's what we'll dive into next. As before, our controller is where all of our business logic should be sitting so we'll start by adding a method to our controller which will add a new item to our list. The function createTodo that we've defined here doesn't really do anything special. If you remember the Ember.Checkbox we used in part 1 to bind a Todo's properties to a view, you can probably guess at where we're going next. All we've done here is override the insertNewline method of Ember's TextField to make it call the createTodo method we defined earlier if the user has entered a value. …into this:
Points clés
ejemplo slide fotos
EaselJS
Recent Updates Follow @CreateJS November 2014 Updates in preparation for next release (coming soon).New class model, with big performance increases October 2014 Lots of bug fixes and pull requests.New 'Extras' folder in GitHub with useful tools and classes July 2014 Major overhaul of Graphics to include a useful command pattern, and a big performance increase.Added Graphics.store() / unstore() The Story Why we built EaselJS About EaselJS EaselJS provides straight forward solutions for working with rich graphics and interactivity with HTML5 Canvas. Featured Projects Community Show & Tell. Ion Drift A port of the Flash game Ion Drift, b10b was able to build a CreateJS version in less than a day that hit target framerates on even the lowest devices, and outperformed ports to other libraries. By b10b b10b
Ember.js Router Action to Controller
Frameworks
Understanding Ember.Object :: Cerebris
Almost every object in Ember.js is derived from a common object: Ember.Object. This object is used as the basis for views, controllers, models, and even the application itself. This simple architectural decision is responsible for much of the consistency across Ember. Because every object has been derived from the same core object, they all share some core capabilities. Every Ember object can observe the properties of other objects, bind their properties to the properties of other objects, specify and update computed properties, and much more. As you'll see in this post, it's easy to get started with Ember.Object, but also easy to overlook some of its capabilities. Creating objects It's almost as simple to create a new Ember.Object as a plain Javascript object: The object literal that is optionally passed to Ember.Object.create() defines properties directly on the instantiated object, not unlike the vanilla object. Extending classes Now, let's instantiate a person with create():
Environement de dev.
Centiped testé sur.
Canvas + -
Flash Pro & CreateJS
Following that is the handleComplete method. This remains almost identical to what was published, except that now it removes the Platypus instance that was on stage. We’ve also enabled touch interactions on our stage, so this game can be played on an iOS device. Quick Tip: In a more complex project, you’d likely get rid of the exportRoot , and add elements to the stage directly. This removes a layer from your display list, which makes elements easier to reference and performs a tiny bit better. Another important change we’ve made is to change the Ticker listener from stage to our tick function. Quick Tip: I’m keeping things simple here, but generally you should create a class that encapsulates your logic and register a method on it with Ticker, instead of polluting the global (window) scope. Adding game logic The tick function is called 20 times per second, and is the heartbeat of the game. Finally, and very critically, we call stage.update(). Handling interaction
Code Conventions
This is a set of coding conventions and rules for use in JavaScript programming. The long-term value of software to an organization is in direct proportion to the quality of the codebase. Over its lifetime, a program will be handled by many pairs of hands and eyes. If a program is able to clearly communicate its structure and characteristics, it is less likely that it will break when modified in the never-too-distant future. Code conventions can help in reducing the brittleness of programs. All of our JavaScript code is sent directly to the public. JavaScript Files JavaScript programs should be stored in and delivered as .js files. JavaScript code should not be embedded in HTML files unless the code is specific to a single session. Whitespace Where possible, these rules are consistent with centuries of good practice with literary style. Blank lines improve readability by setting off sections of code that are logically related. while (true) { Avoid excessively long lines. Use line comments. Is
