ThatJSDude
The easiest and funniest way to understand JavaScript
ThatJSDude launched on October 29, 2014 with 21 votes. The site was still online in September 2026, 11 years on.
What it does
This is a quiz site that is used as practice for technical interviews. We have added a few interactive questions for varying degrees of difficulty according to developer profile: junior , intermediate and senior. Practice your JavaScript skills with our comprehensive technical interview quiz. Choose your difficulty level and test your knowledge. Test your HTML knowledge from basic semantics to advanced Web Components. Perfect for preparing for technical interviews. Master CSS fundamentals to advanced performance optimization. Test your styling and layout expertise across three difficultyfrom thatjsdude.com
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