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  <title>oncanplaythrough — vs canplay</title>



  <style>body{font-family:system-ui,sans-serif;margin:0;padding:1.5rem;background:#f8fafc;color:#334155;line-height:1.7}h1{margin:0 0 .75rem;font-size:1.25rem;color:#0f172a}audio{display:block;max-width:100%;margin-bottom:.75rem}ul{margin:0;padding-left:1.25rem;font-size:.8125rem;max-width:420px}li{margin-bottom:.35rem}.through{color:#1d4ed8;font-weight:600}code{background:#e2e8f0;padding:.1rem .35rem;border-radius:4px}</style>



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  <h1>canplay vs canplaythrough</h1>



  <p><code>canplay</code> = can start. <code>canplaythrough</code> = browser estimates uninterrupted playback.</p>



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  <script>var audio=document.getElementById("audio"),log=document.getElementById("log");function add(e,t){var a=document.createElement("li");t&&(a.className=t),a.textContent=e,log.appendChild(a)}audio.addEventListener("canplay",(function(){add("canplay — enough buffered to start playback")})),audio.addEventListener("canplaythrough",(function(){add("canplaythrough — enough buffered to play through","through")}))</script>



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HTML oncanplaythrough Attribute — vs oncanplay