Arranging Your Data in  Vue.js: A Guide to Sorting Arrays of Numbers: In  Vue.js, you have the ability to sort an array of numbers using the sort method that is available in JavaScript’s Array object. The sort method allows you to rearrange the elements in an array in a specific order. You can sort the numbers in ascending or descending order depending on your needs. To use this method, you simply pass in a comparison function that specifies the sort order. This guide will walk you through the process of sorting arrays of numbers in Vue.js, making it easier for you to get your data organized.

Vue Js Ascending Order Sorting of Object Arrays by Numeric Property

What does the comparison function (a, b) => a - b do in the sortedNumbers computed property when sorting an array in Vue.js?

The comparison function (a, b) => a - b in the sortedNumbers computed property performs the following actions when sorting an array in  Vue.js:

1. Returns a negative number if a is less than b.
2. Returns zero if a and b are equal.
3. Returns a positive number if a is greater than b.

This comparison function is used to sort the numbers array in ascending order by the sort method.

Vue Js Sorting Arrays of Objects by Numeric Property in Ascending Order

<div id="app">
  <table>
     <tr v-for="item in items">
        <td>{{item.id}}</td>
        <td>{{item.name}}</td>
     </tr>
  </table><br>
  <button @click="sortedAsc">Sort Ascending order</button>
</div>
<script type="module">
  const app = new Vue({
            el: "#app",
            data() {
                return {
                    items: [
                        { id: 102, name: 'Andrew' },
                        { id: 201, name: 'CodeSmith' },
                       ],
                }
            },
          methods: {
                sortedAsc() {
                    return this.items.sort((a, b) => {
                        if (a.id < b.id) return -1;
                        if (a.id > b.id) return 1;
                        return 0;
                    });
                },
            }
        });
 </script>

Output of above example

Vue JS Sorting Object Arrays by Numeric Property in Descending Order How does it sort an array of numbers in descending order in Vue.js?

The code is sorting an array of numbers in descending order in  Vue.js. It starts by creating a shallow copy of the original array items using the slice() method. This is important because the sort() method sorts the original array in place and returns a reference to the sorted array, so we don’t want to modify the original items array.

Next, the shallow copy of the items array is sorted using the sort() method and a comparison function (a, b) => b - a. This comparison function compares two numbers a and b and returns a negative value if b is greater than a, a positive value if a is greater than b, and zero if a is equal to b. This is the standard way to sort an array of numbers in descending order.

Finally, the sorted array is displayed in the template using a v-for directive, which loops through the elements of the array and displays each number.

So, in simple terms, the code creates a new sorted array of numbers in descending order, and displays it in the template.

Vue JS Sorting Object Arrays by Numeric Property in Descending Order How does it sort an array of numbers in descending order in Vue.js?

The code is sorting an array of numbers in descending order in  Vue.js. It starts by creating a shallow copy of the original array items using the slice() method. This is important because the sort() method sorts the original array in place and returns a reference to the sorted array, so we don’t want to modify the original items array.

Next, the shallow copy of the items array is sorted using the sort() method and a comparison function (a, b) => b - a. This comparison function compares two numbers a and b and returns a negative value if b is greater than a, a positive value if a is greater than b, and zero if a is equal to b. This is the standard way to sort an array of numbers in descending order.

Finally, the sorted array is displayed in the template using a v-for directive, which loops through the elements of the array and displays each number.

So, in simple terms, the code creates a new sorted array of numbers in descending order, and displays it in the template.

Vue Js Displaying the Sorted Numbers in Descending Order

<div id="app">
  <table>
    <tr v-for="item in items">
         <td>{{item.id}}</td>
         <td>{{item.name}}</td>
    </tr>
  </table><br>
   <button @click="sortedDes">Sort Desending order</button>
</div>
  <script type="module">
        const app = new Vue({
            el: "#app",
            data() {
                return {
                    items: [
                        { id: 102, name: 'Andrew' },
                        { id: 201, name: 'CodeSmith' },
                    ],
                }
            },
          methods: {
                sortedDes() {
                    return this.items.sort((a, b) => {
                        if (b.id < a.id) return -1;
                        if (b.id > a.id) return 1;
                        return 0;
                    });

                },
            }
        });
 </script>