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Sort an array of Strings in JavaScript ?

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In this article, we will sort an array of strings in Javascript. we will be given an array having strings as elements we need to sort them according to the series of A-Z.

We can sort the strings in JavaScript by the following methods described below:

Method 1: Using the sort() method

In this method, we use the predefined sort() method of JavaScript to sort the array of strings. This method is used only when the string is alphabetic. It will produce wrong results if we store numbers in an array and apply this method.

Example: In this example, we will sort the elements of an array using the Javascript sort() method.

javascript

// JavaScript code to sort strings
 
// Original string
let string = ['Suraj', 'Sanjeev', 'Rajnish', 'Yash', 'Ravi']
 
// Print original string array
console.log('Original String')
console.log(string)
 
// Use sort() method to sort the strings
string.sort()
 
console.log('After sorting')
 
// Print sorted string array
console.log(string)

                    

Output
Original String
[ 'Suraj', 'Sanjeev', 'Rajnish', 'Yash', 'Ravi' ]
After sorting
[ 'Rajnish', 'Ravi', 'Sanjeev', 'Suraj', 'Yash' ]

Method 2: Using JavaScript Loops

We will use a simple approach of sorting to sort the strings. In this method, we will use a loop and then compare each element and put the string at its correct position. Here we can store numbers in an array and apply this method to sort the array. 

Example: In this example, we will be using the Javascript loop to sort the elements of an array. 

javascript

// JavaScript code to sort the strings
 
// Function to perform sort
function string_sort (str) {
  let i = 0,
    j
  while (i < str.length) {
    j = i + 1
    while (j < str.length) {
      if (str[j] < str[i]) {
        let temp = str[i]
        str[i] = str[j]
        str[j] = temp
      }
      j++
    }
    i++
  }
}
 
// Driver code
 
// Original string
let string = ['Suraj', 'Sanjeev', 'Rajnish', 'Yash', 'Ravi']
 
// Print original string array
console.log('Original String')
console.log(string)
 
// Call string_sort method
string_sort(string)
 
console.log('After sorting')
 
// Print sorted string array
console.log(string)

                    

Output
Original String
[ 'Suraj', 'Sanjeev', 'Rajnish', 'Yash', 'Ravi' ]
After sorting
[ 'Rajnish', 'Ravi', 'Sanjeev', 'Suraj', 'Yash' ]

Method 3: Using the spread operator (...) and sort() method

This approach creates a shallow copy of the array using the spread operator (...) and then applies the sort() method. It ensures that the original array remains unchanged while obtaining a sorted version.

Example: In this example, we are using Using the spread operator (...) and sort().

Javascript

const array3 = ['banana', 'apple', 'orange', 'grape'];
const sortedArray3 = [...array3].sort();
 
console.log(sortedArray3);  // Output: ["apple", "banana", "grape", "orange"]

                    

Output
[ 'apple', 'banana', 'grape', 'orange' ]


Last Updated : 29 Dec, 2023
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