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Vue JS: can't gett array index of JSON data

in my project i have data from JSON API and i wanted to view the index of each data.. for example, below i viewed the floors from array index numbered from 0 to 22 but when it comes to view flats in each floor i couldn't get the array index, below for floor 0 i have 6 arrays for flats until 22 all have array(6) of flats so i wanted to view them from 0 to 6 for each floor but i couldn't. can someone help in this please?

https://i.stack.imgur.com/aWzCj.png

<template>
    <b-card no-body class="bg-default shadow">
  
 <b-table-simple responsive>
  <b-thead>
    <b-tr>
      <b-th sticky-column>flats </b-th>
      <b-th >  //here i want to show the indexes of array(6) in provided image
      
      </b-th>
   
    </b-tr>
  </b-thead>
  <b-tbody >
    <b-tr  v-for="(floor,floor_index) in Building.floors"
              :key="floor_index">
      <b-th sticky-column></b-th> //here i viewed from 0 to 22 floors
      <b-td>Cell</b-td>
 
    </b-tr>
  </b-tbody>
 </b-table-simple>

    </b-card>
    
</template>
<script>
  import projects from './../projects'
  import { Table, TableColumn} from 'element-ui'
  import BuildingsService from "@/services/ApiService"
  export default {
    name: 'light-table',
    components: {

    },
    data() {
      return {
          Flats:[],
          index:0,
          Floors:[],
          Building:[],
         NoOfFloors: [],
        projects,
        currentPage: 1
      };
    },

mounted: function(){
 
      
      BuildingsService.getOneBuilding(`${this.$route.params.id}`).then((response) => {
      this.Building = response.data.response;
 this.NoOfFloors = this.Building.floors;

console.log(this.Building.floors,"single");
   

    });

        BuildingsService.getFlats().then((response) => {
      this.Flats = response.data.response;
 

    });




    
    }
  }
</script>
Via Active questions tagged javascript - Stack Overflow https://ift.tt/2FdjaAW
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