eligrey-classlist.js

classList.js is a cross-browser JavaScript shim that fully implements element.classList. Refer to [the MDN page on element.classList][1] for more information.

This works in every browser except IE 7 or earlier.

classList.js is available on these public CDN URLs, allowing you to use this already small file at nearly zero size overhead.

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If you would like other versions (such as the current one) hosted there, follow the instructions at
https://github.com/jsdelivr/jsdelivr
and
https://github.com/cdnjs/cdnjs
to prepare a pull request.

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[1]: https://developer.mozilla.org/en/DOM/element.classList "MDN / DOM / element.classList"