Troubleshooting Tips for Resolving Problems with VueJS getElementById Bug

I'm currently working with a VueJS single File component that has the following template:

<template>
        <div class="row">
            <div class="col-md-12">
                <div id="hottable"></div>
            </div>
        </div>
</template>

Along with the script below:

<script>
// Import all Handsontable dependencies
export default {
  props: ['jsondata'],
  data () {
      return {}
  },
  methods: {
    populateTable: function() {
      var container = document.getElementById('hottable')
      console.log('container: ' + container)
    }
  },
  watch: {
    jsondata: function () {
      this.populateTable()
    }
  }
}

When inspecting the browser, I can see that

<div data-v-270950bf id='hottable'></div>

exists. However, when running the code, the console displays:

container: null

I am struggling to figure out why the container is null despite it being present in the HTML.

Answer №1

Works perfectly: https://jsfiddle.net/wostex/63t082p2/47/

However, manual DOM manipulation is not recommended as it can limit the reactivity of your properties.

<div id="app">
  <child></child>
</div>

new Vue({
    el: '#app',
    components: {
    'child': {
      template: `
        <div class="row">
            <div class="col-md-12">
                <div id="hottable"></div>
            </div>
        </div>`,
      mounted() {
        let table = document.getElementById('hottable');
        console.log(table);
      }
    }
  }
});

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