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In computer science, futures, promises, delays, and deferreds are constructs used for synchronizing program execution in some concurrent programming languages.Each is an object that acts as a proxy for a result that is initially unknown, usually because the computation of its value is not yet complete.
Alternatives are synchronous method invocation and future objects. [4] An example for an application that may make use of AMI is a web browser that needs to display a web page even before all images are loaded. Since method is a special case of procedure, asynchronous method invocation is a special case of asynchronous procedure call.
In 2007, F# added asynchronous workflows with version 2.0. [14] The asynchronous workflows are implemented as CE (computation expressions). They can be defined without specifying any special context (like async in C#). F# asynchronous workflows append a bang (!) to keywords to start asynchronous tasks. The following async function downloads ...
Angular 4.3: 18 July 2017: HttpClient for making HTTP requests, conditionally disabling animations, new router life cycle events for Guards and Resolvers. Minor release, meaning that it contains no breaking changes and that it is a drop-in replacement for Angular 4.x.x. Angular 4: 23 March 2017 [37]
Ajax (also AJAX / ˈ eɪ dʒ æ k s /; short for "asynchronous JavaScript and XML" [1] [2]) is a set of web development techniques that uses various web technologies on the client-side to create asynchronous web applications.
Asynchronous learning, an educational method in which the teacher and student are separated in time; Asynchronous motor, a type of electric motor; Asynchronous multiplayer, a form of multiplayer gameplay in video games; Asynchronous muscles, muscles in which there is no one-to-one relationship between stimulation and contraction
Asynchronous message passing may be reliable or unreliable (sometimes referred to as "send and pray"). Message-passing concurrency tends to be far easier to reason about than shared-memory concurrency, and is typically considered a more robust form of concurrent programming.
The actual logic is contained in event-handler routines. These routines handle the events to which the main program will respond. For example, a single left-button mouse-click on a command button in a GUI program may trigger a routine that will open another window, save data to a database or exit the application.