How to get the last item in Vue.js array

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In this Vue.js tutorial, I’ll show you how to get the last item of an array using the slice() method.

You can use the slice(-1) method, which returns a part of an array, without modifying the original array. Which makes it better than using the pop() method, which changes the length of the original array.

Array.slice(-1) example

Suppose you have an array of items: YouTube, Spotify, Facebook and Snapchat. If you want to get the last item (Snapchat) and do something with it (e.g. delete it), you can use the Array​.prototype​.slice() method.

new Vue({
  el: "#app",
  data: {
    items: ['YouTube', 'Spotify', 'Facebook', 'Snapchat']
  },
  computed: {
  	lastItem() {
    	return this.items.slice(-1)[0]
    }
  }
})

HTML:

<div id="app">
  <h2>Items:
  <ul>
    <li v-for="item in items">
      {{ item }}
    </li>
  </ul>
  <br>
  
  <h2>Last item:
  <ul>
    <li>{{ lastItem }}
  </ul>
</div>

Output:

Items:
YouTube
Spotify
Facebook
Snapchat

Last item:
Snapchat

Array of objects example

You can also use the slice() method with an array of objects.

In this example we have an array of projects. Each project has a title and project status (is_active).

We get the last project using the slice() method in the computed property lastItem() and then display it in the template.

new Vue({
  el: "#app",
  data: {
    items: [
      { title: "Project S", is_active: false },
      { title: "Project E", is_active: false },
      { title: "Project Y", is_active: true },
      { title: "Project X", is_active: true }
    ]
  },
  computed: {
  	lastItem() {
    	return this.items.slice(-1)[0]
    }
  }
})

HTML:

<div id="app">
  <h2>Projects:
  <ul>
    <li v-for="item in items">
      <label>
        {{ item.title }}
        <span v-if="item.is_active">
          (active)
        </span>
        <span v-else>
          (inactive)
        </span>
      </label>
    </li>
  </ul>
  <br>
  
  <h2>Last project:
  <ul>
    <li>{{ lastItem.title }}
  </ul>
</div>

Output:

Projects:
Project S (inactive)
Project E (inactive)
Project Y (active)
Project X (active)

Last project:
Project X

If you find this post useful, please let me know in the comments below. 
Cheers,
Renat Galyamov

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PS: Make sure you check other posts e.g. how to check if a user has scrolled to the bottom in Vue.js, how to do Vue.js polling using setInterval(), JavaScript/Vue.js print object in the console and how to create tabs in Vue.js, check if an item already exists in an array in Vue.js.

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