IdontKnowJS

Browser demos. Open DevTools to see their console output. The Core JS and Algorithms snippets are plain scripts; run them with node or read them on GitHub.

• Cookies Set, modify and delete document.cookie
• Bubbling vs capturing Event propagation order (click the red text)
• Event delegation One listener on the list handles every item
• Fetch POST Send a form with fetch() and show the response

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