Search results
Results from the WOW.Com Content Network
Dispose pattern. In object-oriented programming, the dispose pattern is a design pattern for resource management. In this pattern, a resource is held by an object, and released by calling a conventional method – usually called close, dispose, free, release depending on the language – which releases any resources the object is holding onto.
Garbage collection was invented by American computer scientist John McCarthy around 1959 to simplify manual memory management in Lisp. [ 3 ] Garbage collection relieves the programmer from doing manual memory management, where the programmer specifies what objects to de-allocate and return to the memory system and when to do so. [ 4 ]
JavaScript has a deprecated Object.observe function that was a more accurate implementation of the observer pattern. [7] This would fire events upon change to the observed object. Without the deprecated Object.observe function, the pattern may be implemented with more explicit code: [8]
Website. Standards. ECMAScript (/ ˈɛkməskrɪpt /; ES) [ 1 ] is a standard for scripting languages, including JavaScript, JScript, and ActionScript. It is best known as a JavaScript standard intended to ensure the interoperability of web pages across different web browsers. [ 2 ] It is standardized by Ecma International in the document ECMA-262.
C# implements closure blocks by means of the using statement. The using statement accepts an expression which results in an object implementing IDisposable, and the compiler generates code that guarantees the object's disposal when the scope of the using -statement is exited. The using statement is syntactic sugar.
[7] Here is a simple example of how coroutines can be useful. Suppose you have a consumer-producer relationship where one routine creates items and adds them to a queue and another removes items from the queue and uses them. For reasons of efficiency, you want to add and remove several items at once. The code might look like this:
Tuples – .NET Framework 4.0 but it becomes popular when C# 7.0 introduced a new tuple type with language support [100] Nested functions – C# 7.0 [100] Pattern matching – C# 7.0 [100] Immutability – C# 7.2 readonly struct C# 9 record types [101] and Init only setters [102] Type classes – C# 12 roles/extensions (in development [103])
In object-oriented programminglanguages such as Java, reflection allows inspectionof classes, interfaces, fields and methods at runtime without knowing the names of the interfaces, fields, methods at compile time. It also allows instantiationof new objects and invocationof methods. Reflection is often used as part of software testing, such as ...