Adding items from top to bottom in Vue.js

Recently, I came across a code snippet that caught my attention:

<comment-form @created="add"></comment-form>

<div v-for="(comment, index) in items" :key="comment.id">
   <comment :data="comment"></comment>
</div>

Within my mixin, I have a method that is triggered when the event created occurs:

methods: { 
  add(item) {
     this.items.push(item);
     this.$emit('added');
  }
}

After adding a new comment, it always appears at the bottom. I have been trying to figure out how to reverse this order so that newly added comments show up at the top of the list instead of the bottom.

I attempted to use the following:

v-for="(comment, index) in items.slice().reverse()"

Unfortunately, this approach did not work as expected, and the comments continued to display from the top to the bottom.

Answer №1

Check out this updated code snippet:

methods: {
  add(item) {
    this.items.unshift(item);
    this.$emit('added');
  }
}

In JavaScript, the push() method is used to add an element to the end of an array.

On the other hand, the unshift() method adds an element to the beginning of the array (at index 0).

For inserting an element at a specific index in an array, you can use the

splice('insertAtIndex', 0, 'stringToBeInserted')
method.

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