A step-by-step guide on utilizing the v-for index loop to showcase a nested JSON array

Question

A step-by-step guide on utilizing the v-for index loop to showcase a nested JSON array

My JSON Array has the following structure:

    items: [
     {
      ID: 11,
      UserID: "test.com",
      UserRole: "user",
      timeStamp: "2021-03-23T15:54:02.125578",
      dialogs: [
        {
          "Bot": "Why is data missing?",
          "test.com": "not available",
          "Bot": "please enter ID",
          "test.com": "1234"
        }
      ]
    }
  ]

I need to display elements inside dialogs as a list. I am using v-for, but dialogs are being displayed as an array with commas. How can I show this with an index? Here is the v-for loop I am using:

    <ul v-for="item in items" :key="item">
        <li v-for="(dialog, index) in dialogs" :key="index">{{ key }}: {{ dialog }}</li>
    </ul>

javascript arrays json vue.js v-for

Answer 1

Answer №1

 <ul v-for="element in elements" :key="element">
      <li v-for="(conversation, number) in element.conversations" :key="number">{{number}}: {{conversation}}</li>
  </ul>

Answer 2

 <ul v-for="element in elements" :key="element">
      <li v-for="(conversation, number) in element.conversations" :key="number">{{number}}: {{conversation}}</li>
  </ul>

Answer 3

Answer №2

You will need to make 2 changes in order for the code to work correctly.

The keys within your dialogs are currently duplicates, so you should separate them into two distinct objects.
Additionally, you should iterate through the HTML using items.dialogs.

Below is the full revised code:

new Vue({
  el: '#app',
  data: {
    message: 'Hello Vue.js!',
    items: [
     {
      ID: 11,
      UserID: "test.com",
      UserRole: "user",
      timeStamp: "2021-03-23T15:54:02.125578",
      dialogs: [
        {
          "Bot": "Why is data missing?",
          "test.com": "not available"
        },
          
        {"Bot": "please enter ID",
         "test.com": "1234"
        }
      ]
    }
   ]
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>

<div id="app">
 <ul v-for="(item, index) in items" :key="item">
     <li v-for = "(data, index) in item.dialogs"> 
 {{data}}  {{index}}</li>
    </ul>
</div>

Answer 4

You will need to make 2 changes in order for the code to work correctly.

The keys within your dialogs are currently duplicates, so you should separate them into two distinct objects.
Additionally, you should iterate through the HTML using items.dialogs.

Below is the full revised code:

new Vue({
  el: '#app',
  data: {
    message: 'Hello Vue.js!',
    items: [
     {
      ID: 11,
      UserID: "test.com",
      UserRole: "user",
      timeStamp: "2021-03-23T15:54:02.125578",
      dialogs: [
        {
          "Bot": "Why is data missing?",
          "test.com": "not available"
        },
          
        {"Bot": "please enter ID",
         "test.com": "1234"
        }
      ]
    }
   ]
  }
})

<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>

<div id="app">
 <ul v-for="(item, index) in items" :key="item">
     <li v-for = "(data, index) in item.dialogs"> 
 {{data}}  {{index}}</li>
    </ul>
</div>

A step-by-step guide on utilizing the v-for index loop to showcase a nested JSON array

Answer №1

Answer №2

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