VUE - What is the reason for the missing DOM element creation in VUE framework?

Query: How can I generate a new DOM element using vanilla JavaScript and append it to another div within this component?

Here is the snippet of code:

<template>
<div class="backdrop" @click="closeModal">
    <div class="modal">
        <div id="elementContainer">{{ createDiv }}</div>
    </div>
</div>
<script>
    export default {

    props: [ 'elementSummary', 'elementName', 'elementSymbol', 'elementNumber', 'elementPhase', 
'elementShell', 'elementDensity' ],
    methods: {
     createDiv(){
        
        const newDiv = document.createElement('div')
        let divContainer = document.getElementById("elementContainer").appenedChild(newDiv)

  }
}

Answer №1

The issue arises because you are attempting to interpolate a function definition.

If your goal is to add a new div on click, establish a localized state within your modal component. Toggle this state upon clicking and utilize the v-if directive to dynamically add the div.

   export default {
      // defining vue component state
      data: function () { 
       return {
         showContent: false // used for displaying/hiding the dynamic div
       }
      }, 

      props: [],

      methods: {
        /**
        * update state with each click
        **/
        createDiv(){
         this.showContent = !this.showContent;
        }
      }
    }

Incorporate the following into your template:

 <template>
  <div class="backdrop" @click="closeModal">
    <div class="modal">
      <div id="elementContainer">
        <div v-if="showContent">
           ...
        </div>
      </div>
    </div>
  </div>
 </template>

By modifying the value of showContent, vue will appropriately add or remove the subtree associated with the v-if attribute.

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