Home Web Front-end Vue.js How to get event object in vue

How to get event object in vue

May 02, 2024 pm 09:39 PM
vue

Methods to obtain event objects in Vue are: 1. Using the event parameter; 2. Through the $event attribute; 3. Using native event listeners. The event object contains various information about the event, such as target, type, mouse coordinates, modifier key state, and methods to prevent event behavior.

How to get event object in vue

How to get the event object in Vue

Getting the event object in Vue is very simple, there are the following types Method:

1. Using the event parameter

The event handler function usually receives an event parameter, which contains information about the event. For example:

<button @click="handleClick">点击我</button>
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2. Through the $event attribute

in a non-native event handler (such as v-on directive), the event object can be accessed through the $event attribute:

// Vue 实例
export default {
  methods: {
    handleClick(event) {
      // 访问 event 对象
    }
  }
}
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<button v-on:click="handleClick">点击我</button>
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3. Use native event listeners

forv For non-Vue components or elements that cannot be used with the -on directive, native event listeners can be used:

// Vue 实例
export default {
  methods: {
    handleClick() {
      // 访问 this.$event 对象
    }
  }
}
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Event object properties

The event object contains information about the event Various information, including:

  • target: The element that triggered the event
  • type: The event type
  • clientX: The horizontal coordinate of the mouse pointer in the document (relative to the left edge)
  • clientY: The vertical coordinate of the mouse pointer in the document (relative to the upper edge)
  • shiftKey, ctrlKey, altKey: Pressed modifier keys
  • preventDefault(): Prevent events The default behavior of
  • stopPropagation(): prevents events from propagating to the parent element

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