Prototype-based programming

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Prototype-based programming is a style of {{Glossary("OOP", "object-oriented programming")}}  in which {{Glossary('Class', 'classes')}}  are not explicitly defined, but rather derived by adding properties and methods to an instance of another class or, less frequently, adding them to an empty object.

In simple words: this type of style allows the creation of an {{Glossary('Object', 'object')}}  without first defining its {{Glossary('Class', 'class')}} .

See also

• Prototype-based programming on Wikipedia