How can the @blur event be added to the vue-bootstrap-typeahead in Nuxt/Vue application?

Question

How can the @blur event be added to the vue-bootstrap-typeahead in Nuxt/Vue application?

I am facing an issue where I want to trigger a function upon leaving an input field. The input in question is set up using vue-bootstrap-typeahead. Upon inspecting the DOM, I found that the structure of the input element looks like this:

<div id="myElement">
  <div class="input-group input-group-sm">
    <input type="search" autocomplete="off" class="form-control">

Here is the code snippet for reference:

<vue-bootstrap-typeahead
   id="myElement"
   v-model="plateNumberFilter"
   :data="plateNumberOptions"
   size="sm"
   required
   @blur="myFunctionIsnnotTriggered"
   @hit="returnPlateNumberId()"
/>

I tried adding the id="myElement" directly to the typeahead component, but it ends up in the surrounding div instead of the actual input tag.

This leads me to three questions:

How can I add an @blur event listener to the vue-bootstrap-typeahead input field?
Is there a way to assign an id to the input within a vue-bootstrap-typeahead component?
What is the best approach to add an eventListener to the input tag inside the vue-bootstrap-typeahead component?

You are welcome to address any or all of these questions. It would be greatly appreciated to have solutions for all three challenges.

javascript vue.js nuxt.js

Answer 1

Answer №1

The vue-typeahead-component has a limited number of available events, including only the hit and input events. This means that applying the @blur event directly to the component itself is not possible.

To listen for the blur event on the inner <input> element within the vue-bootstrap-typeahead:

Add a template ref to the <vue-bootstrap-typeahead> component.
Access the root DOM element of the component using vm.$el.
Use Element.querySelector() to select the inner <input> element.
Attach an event listener for the blur event on the <input> using
```
EventTarget.addEventListener('blur', handler)
```
.

<template>
  <vue-bootstrap-typeahead ref="typeahead" 1️⃣ />
</template>

<script>
export default {
  async mounted() {
    await this.$nextTick()
    this.$refs.typeahead.$el 2️⃣
        .querySelector('input') 3️⃣
        .addEventListener('blur', (e) => console.log('blur', e)) 4️⃣
  },
}
</script>

Check out the demo

Answer 2

The vue-typeahead-component has a limited number of available events, including only the hit and input events. This means that applying the @blur event directly to the component itself is not possible.

To listen for the blur event on the inner <input> element within the vue-bootstrap-typeahead:

Add a template ref to the <vue-bootstrap-typeahead> component.
Access the root DOM element of the component using vm.$el.
Use Element.querySelector() to select the inner <input> element.
Attach an event listener for the blur event on the <input> using
```
EventTarget.addEventListener('blur', handler)
```
.

<template>
  <vue-bootstrap-typeahead ref="typeahead" 1️⃣ />
</template>

<script>
export default {
  async mounted() {
    await this.$nextTick()
    this.$refs.typeahead.$el 2️⃣
        .querySelector('input') 3️⃣
        .addEventListener('blur', (e) => console.log('blur', e)) 4️⃣
  },
}
</script>

Check out the demo

How can the @blur event be added to the vue-bootstrap-typeahead in Nuxt/Vue application?

Answer №1

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