The Vue component dynamically responds to updates in the Vue data object

After receiving some raw html from the server side, I wanted to dynamically update it using the Vue framework.

Initially, I tried using v-html for this purpose but realized that it doesn't respond to changes in Vue data values.

I found out that components could help achieve this, but I'm struggling to understand how to connect component content with Vue object data.


Imagine I have a Vue data value named table_html, which contains table data ready to be displayed on the page. How can I create a component that updates based on changes in table_html?

The code snippet below demonstrates my unsuccessful attempt at solving this issue. (It appears that assigning self = this results in self referring to the vue-component instead of its parent - the page object.)

page = new Vue({

  components: {
    'table-element': {
      template: "<div>{{ table_html }}</div>",
      data: function() {
        self = this; // References the component, not the parent

        return self.table_html // How to reference the Vue bound data?

      }
    }
  },

  el: "#container",

  data: {
    table_html: "<table>...table contents </table>
  }

Answer №1

1) When it comes to communicating between parent and child components or record-direct registered child, using props can be a reliable solution. Just keep in mind that props act as variable data within a Vue instance.
2) Storing data as an object in JavaScript's global scope in an external JS file is not the most elegant way if you intend to pass data to child components in the HTML architecture.
3) To effectively manage data communication among components, consider utilizing Vuex.

Answer №2

To transfer information from the parent component to the child component, you can utilize the props feature. For more in-depth guidance, refer to the official documentation at https://v2.vuejs.org/v2/guide/components.html#Props

// Defining a component
Vue.component('table-element', {
    // Specifying props
    props: ['tableHtml'],
    
    // Similar to data, props can be accessed within templates and also as this.message in the Vue instance
    template: '<div>{{ tableHtml }}</div>',
    
    data: function() {    
        self = this; 
        return self.tableHtml;
});


page = new Vue({

  el: "#container",

  data: {
    table_html: "<table>...Insert table content here </table>
  }
  
 
})
<div id="container">
  <table-element v-bind:table-html = "table_html" ></table-element>
</div>

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