Javascript-patterns/object-creation-patterns/sandbox.html at master · shichuan/javascript-patterns. Nicholas Zakas: Scalable JavaScript Application Architecture. Patterns For Large-Scale JavaScript Application Architecture. Today we're going to discuss an effective set of patterns for large-scale JavaScript application architecture. The material is based on my talk of the same name, last presented at LondonJS and inspired by previous work by Nicholas Zakas. Who am I and why am I writing about this topic? I'm currently a JavaScript and UI developer at AOL helping to plan and write the front-end architecture to our next generation of client-facing applications.
As these applications are both complex and often require an architecture that is scalable and highly-reusable, it's one of my responsibilities to ensure the patterns used to implement such applications are as sustainable as possible. I also consider myself something of a design pattern enthusiast (although there are far more knowledgeable experts on this topic than I). I've previously written the creative-commons book 'Essential JavaScript Design Patterns' and am in the middle of writing the more detailed follow up to this book at the moment. 1. 2. 3.
JS sandbox pattern implementation - JavaScript. JS Sandbox Pattern. Jsf - Javascript self contained sandbox events and client side stack. Deeper separation in Module Sandbox Core Javascript Pattern. Annotated ES5. Simple JavaScript Inheritance. I’ve been doing a lot of work, lately, with JavaScript inheritance – namely for my work-in-progress JavaScript book – and in doing so have examined a number of different JavaScript classical-inheritance-simulating techniques.
Out of all the ones that I’ve looked at I think my favorites were the implementations employed by base2 and Prototype. I wanted to go about extracting the soul of these techniques into a simple, re-usable, form that could be easily understood and didn’t have any dependencies. Additionally I wanted the result to be simple and highly usable.
Here’s an example of what you can do with it: A couple things to note about this implementation: Creating a constructor had to be simple (in this case simply providing an init method does the trick).In order to create a new ‘class’ you must extend (sub-class) an existing class.All of the ‘classes’ inherit from a single ancestor: Class. Simple Class Creation and Inheritance Initialization Super Method. 5 Must-Reads on JavaScript Inheritance. By Karthik Viswanathan Do you know inheritance in JavaScript? Do you truly understand how it works? Are you aware that JavaScript uses a prototypal inheritance scheme that is often disfavored or disliked? Have you used a script on the web to adapt this scheme to classical inheritance?
In these past few days, I’ve been writing a jQuery slider plugin with various transition effects. Inheritance in JavaScript has been a controversial subject. 1. This reading isn’t really about inheritance, but it’s an important primer on object-oriented programming in JavaScript which will help give you a deeper understand of what is to come. 2. John Resig, the creator of the jQuery JavaScript library, presents his own take on inheritance. 3. Steffen Rusitschka explains the advantages and disadvantages of prototype-based and closure-based (more classical) inheritance. 4. 5. In this reading, Crockford analyzes his old classical inheritance and realizes the benefits of sticking with the prototypal structure. Design - How prototypal inheritance is practically different from classical inheritance. Classical Inheritance in JavaScript. Douglas Crockford www.crockford.com And you think you're so clever and classless and free — John Lennon JavaScript is a class-free, object-oriented language, and as such, it uses prototypal inheritance instead of classical inheritance.
This can be puzzling to programmers trained in conventional object-oriented languages like C++ and Java. JavaScript's prototypal inheritance has more expressive power than classical inheritance, as we will see presently. But first, why do we care about inheritance at all? There are primarily two reasons. The second reason is code reuse. To demonstrate this, we will introduce a little sugar which will let us write in a style that resembles a conventional classical language. Classical Inheritance First, we will make a Parenizor class that will have set and get methods for its value, and a toString method that will wrap the value in parens. The syntax is a little unusual, but it is easy to recognize the classical pattern in it. So now we can write Sugar Conclusion. What ASP.NET Developers Should Know About JavaScript. JavaScript – It's beat up, put down, shrugged off and kicked around. Cursed by the web browser's inconsistency yet blessed by a pervasive ubiquity -it's a technology many try to disregard even when its potential is something few can ignore.
If you want to write an interactive application for the web today, then you'll need some JavaScript code on your side. This article approaches JavaScript from the perspective of an ASP.NET developer who is comfortable with the paradigms and patterns of either C# or Visual Basic. The article doesn't look at how to use JavaScript from ASP.NET exactly, but it does look at why JavaScript is so different from the two languages we commonly use with the .NET CLR. The introduction didn't paint a flattering picture of the JavaScript language, but the truth is JavaScript is a good language. The tools The implementations The bad practices JavaScript Tools Most of the tools we use in a Visual Studio environment are geared to languages targeting the CLR. Ubiquity. Script Junkie | Prototypes and Inheritance in JavaScript. Forget everything you know about object-oriented programming. Instead, I want you to think about race cars.
Yes – race cars. Recently I was watching the 24 Hours of Le Mans –a popular racing event in France. The fastest cars in the race are the Le Mans Prototypes. Although these cars are built by car manufacturers like Audi and Peugeot, they are not cars you’ll see on the streets and highways of your home town. Manufacturers put an enormous amount of money into researching, engineering, and building these prototype cars, and the engineers are always trying to find an edge. You could say mainstream cars inherit technology from racing prototypes. And now we’ve set the mood to talk about prototypes and inheritance in JavaScript.
Of Objects and Classes JavaScript is full of objects, and I mean objects in the classical sense. Var myArray = [1, 2]; myArray.push(3); myArray.reverse(); myArray.pop(); var length = myArray.length; The question is – where does a method like push come from? Figure 1.