Underscore is a utility-belt library for JavaScript that provides a lot of the functional programming support that you would expect in Prototype.js (or Ruby), but without extending any of the built-in JavaScript objects. It's the tie to go along with jQuery's tux, and Backbone.js's suspenders.
Joose is a self-hosting meta object system for JavaScript with support for classes, inheritance, mixins, traits, method modifiers and more. Joose makes object-oriented programming with JavaScript easy, declarative and very productive. The Joose meta-object system is multi-paradigm. It supports class-based and prototype-based programming styles as well as class-based inheritance and role-based extention. The Joose framework has been successfully used in multiple production systems for twelve months now and has been proven to be very stable. Joose is being tested using an automated unit-test suite that is being run in all major browsers (Firefox, IE, Safari, Opera and Chrome).
# Use your Ajax, HTML, JavaScript and DOM skills server-side
# Integrate with databases, file systems, networks and more
# Just tag your JavaScript code to run on the server, the client, or both
# Easily deploy your Jaxer apps to Aptana Cloud from within Studio
It's well overdue, but I've finally managed to get this stuff up. Here are the slides from my presentation on Server-Side JavaScript, as well as the source code for the Jaxer REST API provider and consumers that I wrote.
What we want is the ability to define a method dynamically (given a name) that is also a closure over the lexical scope at the point of method definition.
color_name = 'black' Ninja.send(:define_method, 'color') do puts "#{name}'s color is #{color_name}"end
var colorName = "black"; Ninja.prototype['color'] = function () { puts(this.name + "'s color is " + colorName);}
The ubiquity of closures in Javascript is extremely powerful and, as we have seen so far, makes metaprogramming very easy.
You can think of a metaclass as a class definition specific to a single instance of a class.
This means we can add methods to an object’s metaclass without adding the same behavior to all instances of that object’s class.
This means that Javascript does not distinguish between classes/prototypes and instances and, therefore, we can add our desired behavior directly to the instance.
Unverse is a lightweight - absolutely tiny - collection of terse cross-browser javascript functions that perform common tasks, including a lightbox, ajax calls, animation and drag and drop. It implements DOMready.
Object-oriented JavaScript implements namespace-like principles due to the fact that properties and methods are declared inside of objects, thus there are less likely to be conflicts. A conflict could arise, however, through object names. And very likely, the conflict will occur "silently", thus you may not be alerted to the issue immediately.
if (typeof MY == "undefined") {
MY = new Object();
MY.CUSTOM = new Object();
}
MY.CUSTOM.namespace = function() {
function showStatistics(args) {
document.write("<p><strong>Name:</strong> " + args.name + "<br />");
document.write("<strong>Team:</strong> " + args.team + "<br />");
if (typeof args.position === "string") {
document.write("<strong>Position:</strong> " + args.position + "<br />");
}
if (typeof args.average === "number") {
document.write("<strong>Average:</strong> " + args.average + "<br />");
}
if (typeof args.homeruns === "number") {
document.write("<strong>Home Runs:</strong> " + args.homeruns + "<br />");
}
if (typeof args.rbi === "number") {
document.write("<strong>Runs Batted In:</strong> " + args.rbi + "</p>");
}
}
showStatistics({
name: "Mark Teixeira",
team: "New York Yankees",
position: "1st Base",
average: .284,
homeruns: 32,
rbi: 101
});
}
MY.CUSTOM.namespace();
Closure Compiler is a JavaScript optimizer that compiles web apps down into compact, high-performance JavaScript code.
Closure Library is a broad, well-tested, modular, and cross-browser JavaScript library. Web developers can pull just what they need from a wide set of reusable UI widgets and controls, as well as lower-level utilities for the DOM, server communication, animation, data structures, unit testing, rich-text editing, and much, much more. (Seriously. Check the docs.)
Closure Templates grew out of a desire for web templates that are precompiled to efficient JavaScript. Closure Templates have a simple syntax that is natural for programmers.
Now Anyone can test your Javascript code by online Free Javascript Editor Tool. Javatpoint added a new feature in his javascript tutorial for beginners.
Data visualization is as important to a JS developer as making interactive web pages. Sometimes it might be hard to choose from multiple libraries for creating beautiful charts for the Web. To make things easier, we listed 14 best Javascript libraries for data visualization.
Want to become a Web Developer but confused about which Programming Language to learn first? New-Age developers highly suggest Javascript because of its Versatility and Effectiveness to extend functionality and make websites extremely Rich and Scalable. If you are looking for a high growth Web Development Job Role, do checkout the MEAN Stack Developer Career Path by edWisor and get 4 Guaranteed interviews at top tech companies.