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阻止冒泡

Category: JS Tutorial: DOM实战 Published: 2026-04-07 13:58 Views: 20 Likes: 0 Comments: 0

阻止冒泡事件

<!DOCTYPE html>
<html lang="en">
  <head>
    <style>
      .father {
        overflow: hidden;
        width: 300px;
        height: 300px;
        margin: 100px auto;
        background-color: pink;
        text-align: center;
      }

      .son {
        width: 200px;
        height: 200px;
        margin: 50px;
        background-color: purple;
        line-height: 200px;
        color: #fff;
      }
    </style>
  </head>

  <body>
    <div class="father">
      <div class="son">son儿子</div>
    </div>

    <script>
      // 常见事件对象的属性和方法
      var son = document.querySelector(".son");
      var father = document.querySelector(".father");

      // 阻止冒泡 dom 推荐的标准 stopPropagation()
      son.addEventListener(
        "click",
        function (e) {
          alert("son");
          e.stopPropagation(); // stop 停止 Propagation 传播
          // e.cancelBubble = true; // 非标准 cancel 取消 bubble 泡泡
        },
        false
      );

      father.addEventListener(
        "click",
        function () {
          alert("father");
        },
        false
      );

      document.addEventListener("click", function () {
        alert("document");
      });
    </script>
  </body>
</html>