Tips for accessing an Element by its Id in Vue

Question

Tips for accessing an Element by its Id in Vue

I am trying to access an external Element in Vue by using the method getElementById():

new Vue({
  el: "#vue",
  data: {
    helloElement: document.getElementById('hello')
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.2/vue.js"></script>
<div id="hello">
  hello
</div>
<div id="vue">
  {{helloElement}}
</div>

Although this code provides me with an empty Element, it doesn't return a null, indicating that the query was partially successful (something was found).

This is essentially a proof of concept for a larger issue I am dealing with: the ability to retrieve an external Element (such as a container div) from within a Vue component (which results in a null, as per the documentation's explanation when the element is not located).

Is there a way, from inside a Vue object or component, to access an external Element present in the HTML DOM?

javascript vue.js vue-component

Answer 1

Answer №1

Yes, it is indeed possible to achieve this. However, it is important to note that implementing such functionality may indicate poor app design and could potentially create a vulnerability for XSS attacks.

new Vue({
  el: "#vue",
  data: {
    helloElement: document.getElementById('hello').outerHTML
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.2/vue.min.js"></script>
<div id="hello">
  hello
</div>
<div id="vue" v-html="helloElement"></div>

Answer 2

Yes, it is indeed possible to achieve this. However, it is important to note that implementing such functionality may indicate poor app design and could potentially create a vulnerability for XSS attacks.

new Vue({
  el: "#vue",
  data: {
    helloElement: document.getElementById('hello').outerHTML
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.2/vue.min.js"></script>
<div id="hello">
  hello
</div>
<div id="vue" v-html="helloElement"></div>

Answer 3

Answer №2

Here is a code snippet that achieves the desired functionality. I made some changes to your original code by using classes instead of ids to avoid duplication. I utilized the outerHTML method to extract the DOM element as a string and then displayed it using Vue's v-html directive.

new Vue({
  el: "#vue",
  data: {
    helloElement: document.getElementsByClassName('hello')[0].outerHTML
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.2/vue.js"></script>
<div class="hello">
  hello
</div>
<div id="vue">
  <div v-html="helloElement"></div>
</div>

Answer 4

Here is a code snippet that achieves the desired functionality. I made some changes to your original code by using classes instead of ids to avoid duplication. I utilized the outerHTML method to extract the DOM element as a string and then displayed it using Vue's v-html directive.

new Vue({
  el: "#vue",
  data: {
    helloElement: document.getElementsByClassName('hello')[0].outerHTML
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.2/vue.js"></script>
<div class="hello">
  hello
</div>
<div id="vue">
  <div v-html="helloElement"></div>
</div>

Answer 5

Answer №3

Creating a new instance of Vue:
new Vue({
  el: "#vue",
  data: {
    helloElement: document.getElementById('hello')
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.2/vue.js"></script>
<div id="hello">
  hello
</div>
<div id="vue">
  {{helloElement.innerHTML}}
</div>

It seems like your code is functioning properly now, and you are successfully capturing the DOM element in helloElement.

https://i.sstatic.net/qKqsZ.png

By adding .innerHTML, you will be able to access the solution you're looking for.

Answer 6

Creating a new instance of Vue:
new Vue({
  el: "#vue",
  data: {
    helloElement: document.getElementById('hello')
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.2/vue.js"></script>
<div id="hello">
  hello
</div>
<div id="vue">
  {{helloElement.innerHTML}}
</div>

It seems like your code is functioning properly now, and you are successfully capturing the DOM element in helloElement.

https://i.sstatic.net/qKqsZ.png

By adding .innerHTML, you will be able to access the solution you're looking for.

Tips for accessing an Element by its Id in Vue

Answer №1

Answer №2

Answer №3

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