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Alex Rivera
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As an example, copied from jQuery 1.2.6: jQuery.fn = jQuery.prototype = { init: function( selector, context ) { // Make sure that a selection was provided selector = selector || document; .......... }, }; I have read some posts here like JavaScript: What are .extend and .prototype used for? and know a prototype can be used in a subclass to extend some methods. But I cannot understand the usage in the above snippet from jQuery. Are there any canonical documents describing the prototype? Thanks.
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