Search results
Results From The WOW.Com Content Network
First, the async keyword indicates to C# that the method is asynchronous, meaning that it may use an arbitrary number of await expressions and will bind the result to a promise. [1]: 165–168 The return type, Task<T>, is C#'s analogue to the concept of a promise, and here is indicated to have a result value of type int.
Asynchronous Tasks can be awaited in the Main method by declaring the method's return type as Task. static async Task Main ( string [] args ) { await DoWorkAsync ( 42 ); } All the combinations of Task , or Task<int>, and with, or without, the string[] args parameter are supported.
.NET via Tasks C#, since .NET Framework 4.5, [22] via the keywords async and await [23] Kotlin, however kotlin.native.concurrent.Future is only usually used when writing Kotlin that is intended to run natively [35] Nim; Oxygene; Oz version 3 [36] Python concurrent.futures, since 3.2, [37] as proposed by the PEP 3148, and Python 3.5 added async ...
Microsoft first used the name C# in 1988 for a variant of the C language designed for incremental compilation. [37] That project was not completed, and the name was later reused. C-sharp musical note. The name "C sharp" was inspired by the musical notation whereby a sharp symbol indicates that the written note should be made a semitone higher ...
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 .
contains(string,substring) returns boolean Description Returns whether string contains substring as a substring. This is equivalent to using Find and then detecting that it does not result in the failure condition listed in the third column of the Find section. However, some languages have a simpler way of expressing this test. Related
With .NET Framework 4.0, a new task-based programming model was introduced to replace the existing event-based asynchronous model. The API is based around the Task and Task<T> classes. Tasks can be composed and chained. By convention, every method that returns a Task should have its name postfixed with Async.
In some of these languages an extra keyword is used to declare no return value; for example void in C, C++ and C#. In some languages, such as Python, the difference is whether the body contains a return statement with a value, and a particular callable may return with or without a value based on control flow.