JavaScript Program to Sort the Elements of an Array in Ascending Order

Sorting an array in ascending order means arranging the elements from smallest element to largest element. we will learn to sort an array in ascending order in JavaScript.

These are the following methods:

Approach 1: Using the sort method

In this approach, A function sortAsc to sort an array in ascending order. The arr parameter represents the input array. It creates a copy of the array using slice() to avoid modifying the original array. The sort() method arranges elements in ascending order based on the return value of the comparison function (a, b) => a – b, subtracting b from a. Finally, it returns the sorted array.

Example: This example shows the implementation of the above-explained approach.

Javascript

function sortAsc(arr) {
    return arr.slice().sort((a, b) => a - b);
}

const array = [5, 3, 9, 1, 7];
const sortedArray = sortAsc(array);
console.log("Sorted Array (Ascending):", sortedArray);

Output

Sorted Array (Ascending): [ 1, 3, 5, 7, 9 ]

Approach 2: Using a for loop

The Sort function employs the bubble sort algorithm to arrange array elements in ascending order. It iterates through the array, comparing adjacent elements and swapping them if they are in the wrong order. Variables len, i, and j respectively represent the array length, outer loop index, and inner loop index. temp temporarily holds elements during swapping. The sorted array is returned.

Example: This example shows the implementation of the above-explained approach.

Javascript

function Sort(arr) {
    let len = arr.length;
    for (let i = 0; i < len - 1; i++) {
        for (let j = 0; j < len - 1 - i; j++) {
            if (arr[j] > arr[j + 1]) {
                let temp = arr[j];
                arr[j] = arr[j + 1];
                arr[j + 1] = temp;
            }
        }
    }
    return arr;
}

const array = [5, 3, 9, 1, 7];
const sortedArray = Sort(array);
console.log("Sorted Array (Ascending):",
    sortedArray);

Output

Sorted Array (Ascending): [ 1, 3, 5, 7, 9 ]