The basics of the jQuery JavaScript framework

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What is a framework? common code that exists in a library and can be reused through a well-defined application programming interface (API)  
CDN Content Distribution Network  
link code in HTML file to jQuery code (Google CDN example) (In a script tag in the HTML file) type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.4/jquery.min.js"> (revised)
link code in HTML file to jQuery code (local file example) (within a script tag in the HTML file) type='text/javascript' src='script.js'> (revised)
src="http://ajax.googleapis.com/ajax/libs/jquery/1.8/jquery.min.js 1.8.0 - 1.8.9  
src="http://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js 1.0.0 - 1.9.9  
core_pnum = /[\-+]?(?:\d*\.|)\d+(?:[eE][\-+]?\d+|)/.source, // Used for matching numbers  
core_rnotwhite = /\S/, core_rspace = /\s+/, // Used for detecting and trimming whitespace  
rvalidchars = /^[\],:{}\s]*$/, rvalidbraces = /(?:^|:|,)(?:\s*\[)+/g, rvalidescape = /\\(?:["\\\/bfnrt]|u[\da-fA-F]{4})/g, rvalidtokens = /"[^"\\\r\n]*"|true|false|null|-?(?:\d\d*\.|)\d+(?:[eE][\-+]?\d+|)/g, // JSON RegExp  

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