Aurelia is a next generation UI framework. Whether you're building apps for the browser, mobile or desktop, Aurelia can enable you to not only create amazing UI, but do it in a way that is maintainable, testable and extensible.
Promises in AngularJS are provided by the built-in $q service. They provide a way to execute asynchronous functions in series by registering them with a promise object.
A service that helps you run functions asynchronously, and use their return values (or exceptions) when they are done processing.
A new instance of deferred is constructed by calling $q.defer().
A new promise instance is created when a deferred instance is created and can be retrieved by calling deferred.promise.
$q is integrated with the $rootScope.Scope Scope model observation mechanism in angular, which means faster propagation of resolution or rejection into your models and avoiding unnecessary browser repaints, which would result in flickering UI.
var deferred = $q.defer(); var promise = deferred.promise;
Loads any module format when running the ~15KB development build.
Loads ES modules compiled into the System.register module format for production with exact circular reference and binding support
Supports RequireJS-style map, paths, and bundles configuration.
Built with the ES Module Loader project, which is based on principles and APIs from the WhatWG Loader specification, modules in HTML and NodeJS.
Supports IE9+ provided a promises polyfill is available in the environment.
System.js however is a pretty good replacement for require.js. The config is robust, the bundling API is reasonable, and if you have dynamic loading scenarios, especially where you don't know the resources at bundling time, it's really a good client loader.
The above definition may be ambiguous, in simple terms, PhantomJS is a web browser without a graphical user interface.
Since PhantomJS is not usable when it comes to surfing the web, it has a whole set of features that developers love and use for many purposes.
Multiplatform, available on major operating systems: Windows, Mac OS X, Linux, and other Unices.
Pure headless (no X11) on Linux, ideal for continuous integration systems. Also runs on Amazon EC2, Heroku, and Iron.io.
Video for Phantom.Js https://www.youtube.com/watch?v=6Y3ugEFU0uU