https://detafti.ir/tags/javascript/Recent content in Javascript on MDT - Personal siteHugoen-ushttps://detafti.ir/notes/example-video/Fri, 28 Aug 2026 10:00:00 +0330https://detafti.ir/notes/example-video/<p>This is a starter video note. Copy it, or delete it once you add your own.</p> <p>Use <code>note_type = &quot;video&quot;</code> and put the YouTube URL in <code>source</code> so the video embeds at the top. Headings like <code>12:40</code> make timestamped notes easy to scan.</p> <h2 id="takeaways">Takeaways</h2> <ul> <li>The browser event loop is a queue: JavaScript runs one thing at a time, then picks the next callback.</li> <li>Rendering and I/O are not the same queue as your JS callbacks.</li> <li><code>setTimeout(fn, 0)</code> does not run immediately; it waits until the current stack is clear.</li> </ul> <h2 id="notes">Notes</h2> <h3 id="0115--call-stack">01:15 — Call stack</h3> <p>JS is single-threaded. Each function call is pushed onto the stack and popped when it returns.</p>