vue listens for Enter key

Table of contents

@keydown.enter

Method 1: Use the `@keydown.enter` command

Method 2: Check the pressed key in the `@keydown` event handler

@keyup.enter.native

The difference between @keydown.enter and @keyup.enter.native

1. Trigger timing:

2. Event type:

3. Event bubbling:


@keydown.enter

Listening for the Enter key in Vue can be achieved by using the `@keydown.enter` directive or checking whether the pressed key is the Enter key in the `@keydown` event handler.

Method 1: Use the `@keydown.enter` command

<template>
  <input type="text" @keydown.enter="handleEnterKey" />
</template>

<script>
export default {
  methods: {
    handleEnterKey() {
      // 处理Enter键的逻辑
    }
  }
}
</script>

In the above code, the `@keydown.enter` command is bound to the input box. When the user presses the Enter key, the `handleEnterKey` method will be called to process the logic.

Method 2: Check the pressed key in the `@keydown` event handler

<template>
  <input type="text" @keydown="handleKeyDown" />
</template>

<script>
export default {
  methods: {
    handleKeyDown(event) {
      if (event.key === 'Enter') {
        // 处理Enter键的逻辑
      }
    }
  }
}
</script>

In the above code, the `@keydown` event is bound to the input box, and when the user presses any key, the `handleKeyDown` method will be called. In the method, we check if `event.key` is equal to 'Enter' and if so, handle the logic of the Enter key.

Both methods can be used to monitor the Enter key press event and execute corresponding logic. You can choose one of the methods according to your needs.

@keyup.enter.native

`@keyup.enter.native` is an event modifier in Vue, used to listen to the native keyup event and detect whether the Enter key is pressed.

<template>
  <input type="text" @keyup.enter.native="handleEnterKey" />
</template>

<script>
export default {
  methods: {
    handleEnterKey() {
      // 处理Enter键的逻辑
    }
  }
}
</script>

In the above code, the `@keyup.enter.native` modifier is bound to the input box. When the user releases the key, if the Enter key is pressed, the `handleEnterKey` method will be called to handle the logic.

It should be noted that the `.native` modifier is used to listen to native events on the root element of the component, not the child elements inside the component. In the above example, we are listening to the native keyup event of the input box and detecting whether the Enter key is pressed.

Use `@keyup.enter.native` to conveniently monitor the release event of the Enter key and execute the corresponding logic.

The difference between @keydown.enter and @keyup.enter.native

Both `@keydown.enter` and `@keyup.enter.native` can be used to listen for the Enter key press event, but there are some differences between them.

1. Trigger timing:

   - `@keydown.enter`: Triggers the event immediately when the user presses the Enter key.
   - `@keyup.enter.native`: Triggers the event when the user releases the Enter key.

2. Event type:

   - `@keydown.enter`: Events bound in the Vue template will be processed in the Vue event processing system.
   - `@keyup.enter.native`: Native events bound to the root element of the component will be triggered directly on the DOM element.

3. Event bubbling:

   - `@keydown.enter`: Since it is an event bound in the Vue template, it can be passed to the parent component through the event bubbling mechanism.
   - `@keyup.enter.native`: As a native event, it will be triggered directly on the DOM element and will not bubble through the Vue event system.

Typically, if you want an event to be triggered immediately when the user presses the Enter key, and you need event bubbling, you can use `@keydown.enter`. And if you only care about the event when the user releases the Enter key, and do not need the event bubbling function, you can use `@keyup.enter.native`.

Which method you choose to use depends on your specific needs and scenarios.

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Origin blog.csdn.net/libusi001/article/details/132815012