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Model–view–viewmodel (MVVM) is an architectural pattern in computer software that facilitates the separation of the development of a graphical user interface (GUI; the view)—be it via a markup language or GUI code—from the development of the business logic or back-end logic (the model) such that the view is not dependent upon any ...
However, their scheme differed from both Reenskaug et al.'s and that presented by the Smalltalk-80 reference books. They defined a view as covering any graphical concern, with a controller being a more abstract, generally invisible object that receives user input and interacts with one or many views and only one model. [10]
The mediator [1] design pattern is one of the twenty-three well-known design patterns that describe how to solve recurring design problems to design flexible and reusable object-oriented software, that is, objects that are easier to implement, change, test, and reuse.
The key idea in this pattern is to work through a separate adapter that adapts the interface of an (already existing) class without changing it. Clients don't know whether they work with a target class directly or through an adapter with a class that does not have the target interface. See also the UML class diagram below.
Text editors, such as LibreOffice Writer, often use the flyweight pattern.. In computer programming, the flyweight software design pattern refers to an object that minimizes memory usage by sharing some of its data with other similar objects.
On February 16, 2019, React 16.8 was released to the public, introducing React Hooks. [18] Hooks are functions that let developers "hook into" React state and lifecycle features from function components. [19]
Vue was created by Evan You after working for Google using AngularJS in several projects. He later summed up his thought process: "I figured, what if I could just extract the part that I really liked about Angular and build something really lightweight."
Meyer described the Eiffel software development method, based on a small number of key ideas from software engineering and computer science, in Object-Oriented Software Construction. [20] Essential to the quality focus of Eiffel is Meyer's reliability mechanism, design by contract , which is an integral part of both the method and language.