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Over time, JavaScript, like most languages, has changed. Maintaining JavaScript is the same as maintaining HTML or any other computer language. As new browsers are released on the market, features change, language constructs deprecate, and new bugs are introduced.

Maintenance of JavaScript has been greatly simplified in recent years by the rise of JavaScript Frameworks (jQuery, prototype, ExtJS, et al.) These frameworks are created to ease the burden on the developer to produce code that is compatible across all browsers, instead acting as a translation layer between the browser and the developer's code.

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12y ago

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