Summary and difference of Vue listening to Enter key

one,@

Listening to the Enter key in Vue can be done by using the `@` directive

Or in the `@keydown` event handler function

Check whether the pressed key is the Enter key to achieve it.

1. Use the @ command

<template>
  <input type="text" @="handleEnterKey" />
</template>
<script>
export default {
  methods: {
    handleEnterKey() {
      // Logic for processing Enter keys    }
  }
}
</script>

In the above code, the `@` directive is bound to the input box. When the user presses the Enter key, the `handleEnterKey` method is called to handle the logic.

2. Check the pressed key in the @keydown event handler function

<template>
  <input type="text" @keydown="handleKeyDown" />
</template>
<script>
export default {
  methods: {
    handleKeyDown(event) {
      if ( === 'Enter') {
        // Logic for processing Enter keys      }
    }
  }
}
</script>

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

Both methods can be used to listen for pressing events of Enter keys and execute corresponding logic. You can choose one of these methods according to your needs.

two,@

`@` is an event modifier in Vue that listens to the native keyup event and detects whether the Enter key has been pressed.

<template>
  <input type="text" @="handleEnterKey" />
</template>
<script>
export default {
  methods: {
    handleEnterKey() {
      // Logic for processing Enter keys    }
  }
}
</script>

In the above code, the `@` 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 for native events of the component root element, rather than child elements inside the component. In the example above, we listen to the native keyup event of the input box and check whether the Enter key is pressed.

Use `@` to easily listen for the release event of the Enter key and execute the corresponding logic.

3. The difference between @ and @

Both `@` and `@` can be used to listen for press events of Enter keys, but there are some differences between them.

1. Trigger timing

- `@`: The event is triggered immediately when the user presses the Enter key.
- `@`: Triggers the event when the user releases the Enter key.

2. Event Type

- `@`: Events bound to Vue templates will be processed in Vue's event processing system.
- `@`: Native events bound to the component root element will be triggered directly on the DOM element.

3. Event bubbles

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

In the above table, "Yes" means that this feature is supported, and "No" means that it is not supported.

• Is a Vue event modifier used to listen for keyboard key events and trigger the corresponding processing function when the Enter key is pressed. Regardless of whether the Enter key is released or not, the event will be triggered as long as the Enter key is pressed. It belongs to the keydown event type and supports event bubbles.
• @ is the syntax sugar of Vue, used to listen for native keyboard keyup events and trigger the corresponding handling function when the Enter key is released. It belongs to the keyup event type and supports event bubbles. The @ event will only be triggered when the Enter key is released, and pressing the Enter key will not trigger the event.

To sum up, the difference between @ is the triggering timing, event type and event bubble. If you need to trigger an event when pressing Enter, and you want the event to bubble up to the parent element, you can use a modifier; if you need to trigger an event when releasing Enter, and you want the event to bubble up to the parent element, and you need to support native events, you can use @ syntax sugar.

Normally, if you want to trigger an event immediately when the user presses the Enter key and need the function of event bubbled, you can use `@`. And if you only care about the event that the user releases the Enter key and does not require the event bubble function, you can use `@`.

Which method to use depends on your specific needs and scenario.

Summarize

This is all about this article about Vue monitoring Enter key. For more related content on Vue monitoring Enter key, please search for my previous articles or continue browsing the related articles below. I hope everyone will support me in the future!