Hierarchic Indeterminate Checkboxes with JavaScript (Vanilla)

Earlier today Chris Coyier tweeted that he was in the process of rewriting one of his pens without jQuery:

Sparked by his tweet I decided to fork his pen and try to do it myself. Here’s the result:

A fun exercise if I say so myself, even though I’m not 100% satisfied with the manual traversal I needed to do (.parentElement.parentElement — really?). Perhaps there’s a better way to do this?

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Published by Bramus!

Bramus is a frontend web developer from Belgium, working as a Chrome Developer Relations Engineer at Google. From the moment he discovered view-source at the age of 14 (way back in 1997), he fell in love with the web and has been tinkering with it ever since (more …)

Unless noted otherwise, the contents of this post are licensed under the Creative Commons Attribution 4.0 License and code samples are licensed under the MIT License

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