Classes in TypeScript
Learn how to create and use classes in TypeScript.
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We have already overviewed the most relevant bits and pieces of TypeScript, and now it’s time to see how everything falls into place with TypeScript classes. Classes are a fundamental concept in Angular development because everything in the Angular world is a TypeScript class.
Although the class
is a reserved keyword in JavaScript, the language itself never had an actual implementation as in other languages such as Java or C#. JavaScript developers used to mimic this kind of functionality by leveraging the function object as a constructor type and instantiating it with the new
operator. Other standard practices, such as extending function objects, were implemented by applying prototypal inheritance or using composition.
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