JavaScript事件流事件冒泡的相关内容

文章 2024-10-27 来自：开发者社区

JS DOM 事件流与事件冒泡

在 JavaScript 中，DOM 事件的传播和处理遵循一定的顺序，这其中涉及到事件流和事件冒泡两个重要概念。一、事件流事件流描述了事件在 DOM 元素中传播的过程。主要有三个阶段：捕获阶段：事件从文档根节点开始向下传播，直到到达目标元素。目标阶段：事件到达目标元素。冒泡阶段：事件从目标元素...

文章 2024-07-04 来自：开发者社区

js 事件流、事件冒泡、事件捕获、阻止事件的传播

事件流 js 事件的执行过程分为捕获阶段（由外层节点传播到内层节点）和冒泡阶段（由内层节点传播到外层节点），即先执行捕获阶段的代码，后执行冒泡阶段的代码事件冒泡 js 事件中的代码默认在冒泡阶段执行，以下图为例，点击box2时，会依次触发box2的点击事件【冒泡阶段执行】、box1的点击事件【冒泡阶段执行】、window的点击事件【冒泡阶...

文章 2022-11-22 来自：开发者社区

13、JS事件（事件绑定、事件流、阻止事件冒泡、取消元素默认行为）

1、事件绑定（onclick、addEventListener）区别onclick与addEventListeneronclick在同一元素的同一事件类型添加多个事件，会被覆盖。不可以设置元素在捕获阶段触发的事件addEventListener在同一元素的同一事件类型添加多个事件，不会被覆盖。可以设置元素在捕获阶段（从外到内）触发的事件 <script> // 1、事件绑定...

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更新时间 2024-10-28 08:43:41

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