Button to remove array element in Vue

Let's make a button for reactively deleting items from a list. Let's start implementing it. Let's say we have an array:

App.vuedata() {
  return {
    items: ['a', 'b', 'c', 'd', 'e'],
  }
}

Let's output the contents of the array as a list:

App.vue<template>
  <ul>
    <li v-for="(item, index) in items" :key="index">
      {{ item }}
    </li>
  </ul>
</template>

Let's make a delete button in each list item. In this button, we'll bind a method whose parameter will be the number of the array element we're going to delete:

App.vue<template>
  <ul>
    <li v-for="(item, index) in items" :key="index">
      {{ item }}
      <button @click="removeItem(index)">remove</button>
    </li>
  </ul>
</template>

We implement deletion in the removeItem method:

App.vuemethods: {
  removeItem: function(index) {
    this.items.splice(index, 1);
  }
}