Libraries
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Prototype also provides library functions to support classes and class-based objects, [ 2 ] something the JavaScript language lacks. [ 3 ] [ 4 ] In JavaScript, object creation is prototype -based instead: an object creating function can have a prototype property, and any object assigned to that property will be used as a prototype for the objects created with that function. The Prototype framework is not to be confused with this language feature.
Prototype JavaScript Framework - Wikipedia, the free encyclopedia
This page discusses why modules on the web are useful and the mechanisms that can be used on the web today to enable them.