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<!DOCTYPE html>

<html lang="en">

<head>

  <meta charset="utf-8">

  <title>stopPropagation vs stopImmediate</title>

  <style>

    body { font-family: sans-serif; padding: 16px; max-width: 32rem; }

    button { display: block; margin-bottom: 8px; padding: 8px 16px; }

    pre { background: #f1f5f9; padding: 12px; border-radius: 6px; font-size: 13px; min-height: 3rem; white-space: pre-wrap; }

  </style>

</head>

<body>

  <button type="button" id="btn-a">Button A — stopPropagation</button>

  <pre id="log-a">Click Button A.</pre>

  <button type="button" id="btn-b">Button B — stopImmediatePropagation</button>

  <pre id="log-b">Click Button B.</pre>

  <script src="https://code.jquery.com/jquery-3.7.1.min.js"></script>

  <script>

    $("#btn-a").on("click", function (event) {

      event.stopPropagation();

      $("#log-a").append("Handler 1 (stopPropagation)
");

    });

    $("#btn-a").on("click", function () {

      $("#log-a").append("Handler 2 still ran
");

    });

    $("#btn-b").on("click", function (event) {

      event.stopImmediatePropagation();

      $("#log-b").append("Handler 1 (stopImmediate)
");

    });

    $("#btn-b").on("click", function () {

      $("#log-b").append("Handler 2 still ran
");

    });

  </script>

</body>

</html>

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jQuery stopPropagation vs stopImmediatePropagation (Try It)