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Home > List of blog posts > Js运行机制、事件添加方式及事件冒泡、事件委托，fetch的常用场景
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Js运行机制、事件添加方式及事件冒泡、事件委托，fetch的常用场景
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Js运行机制、事件添加方式及事件冒泡、事件委托，fetch的常用场景

Js运行机制

事件添加方式

1、事件属性添加

  1.  <button onclick="alert('你好')">事件属性</button>

2、元素对象

元素对象

3、事件监听器

图一：

图二：

图三：

4、事件派发

事件冒泡

事件委托

fetch常用场景

请求网络数据或者本地数据,链式调用

Correcting teacher：PHPzPHPz

Correction status：qualified

Teacher's comments：
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