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Class can extend both custom and built-in classes. Typically custom components would extend built in components (e.g. MyApp.views.ProductsTable would extend built-in Ext.grid.Panel). [10] There is a built-in dynamic loader so classes can have dynamic dependencies (loaded on-demand). There are two types of dependencies in ExtJS.
As an example, consider a need of extending the string class with a new reverse method whose return value is a string with the characters in reversed order. Because the string class is a sealed type, the method would typically be added to a new utility class in a manner similar to the following:
Decorator UML class diagram. The decorator pattern can be used to extend (decorate) the functionality of a certain object statically, or in some cases at run-time, independently of other instances of the same class, provided some groundwork is done at design time.
This is an accepted version of this page This is the latest accepted revision, reviewed on 13 February 2025. High-level programming language Not to be confused with Java (programming language), Javanese script, or ECMAScript. JavaScript Screenshot of JavaScript source code Paradigm Multi-paradigm: event-driven, functional, imperative, procedural, object-oriented Designed by Brendan Eich of ...
Composition over inheritance (or composite reuse principle) in object-oriented programming (OOP) is the principle that classes should favor polymorphic behavior and code reuse by their composition (by containing instances of other classes that implement the desired functionality) over inheritance from a base or parent class. [2]
The aircraft carrier USS Harry S. Truman collided with a large merchant vessel Wednesday night in the vicinity of Port Said, Egypt, in the Mediterranean Sea. "The Nimitz-class aircraft carrier USS ...
It also extends Trump’s 2017 tax cut for the next ten years, adding at least $2 trillion to the federal deficit even if America experiences strong economic growth. House Budget Committee Chair ...
Tristan Thompson drew so much vitriol at a recent game that Toronto’s Scotiabank Arena had the look of a Khloé Kardashian fan club meeting instead of an NBA court. Thompson, 33, caused a ...