But if I ask: Does a closure store values or references? How can closures lead to memory leaks? What happens when closures hold DOM references? How does garbage collection decide what can be removed?

📣 𝗡𝗲𝘅𝘁 𝗕𝗹𝗼𝗴 𝗶𝘀 𝗛𝗲𝗿𝗲! ⤵️ Map and Set in JavaScript 🗺️⚡ Two modern JavaScript data structures that confuse many beginners—explained in a simple and practical way. 🔗 𝗥𝗲𝗮𝗱 𝗵𝗲𝗿𝗲: ...

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I don't have much to add, mjbvz is the webview core dev owner and explained it all just fine. Does this apply to also markdown in notebooks? Doesn't really matter, you could sanitize the markdown ...