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Libraries and frameworks

Over 80% of websites use a third-party JavaScript library or web framework as part of their client-side scripting.

jQuery is by far the most-used. Other notable ones include Angular, Bootstrap, Lodash, Modernizr, React, Underscore, and Vue. Multiple options can be used in conjunction, such as jQuery and Bootstrap.

However, the term "Vanilla JS" was coined for websites not using any libraries or frameworks at all, instead relying entirely on standard JavaScript functionality.