How to use $event in vue

$event is an object used in Vue to pass event information, including triggering elements, event types, and methods to prevent default behavior. It allows components to easily access event details, prevents default behavior and enhances code readability.

Usage of $event in Vue

What is $event?

$event is a special object in Vue, used to pass event information between components. It contains information about the triggering event, for example:

• target: The element that triggered the event
• type: The type of the event (e.g. , "click", "input")
• preventDefault(): Prevent default browser behavior (for example, submitting a form)

How to use $event?

To use $event, just declare it as a parameter in the component's method. For example:

<code class="html"><template>
  <button @click="handleClick">点击</button>
</template>

<script>
export default {
  methods: {
    handleClick(event) {
      // `event` 对象包含有关点击事件的信息
      console.log(event.target);
    }
  }
}
</script></code>

Benefits of using $event

Using $event has the following benefits:

• Passing event information: $event Allows components to easily access the details of a triggered event without using additional properties or methods.
• Prevent default behavior: You can prevent the browser's default processing of events by calling event.preventDefault(). This is useful for preventing form submission, navigation, or other unwanted behavior.
• Enhance code readability: Using $event can make your code easier to read and maintain because event handlers have access to all relevant information.

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