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Showing content from https://www.geeksforgeeks.org/javascript/sort-a-string-in-javascript/ below:

Sort a String in JavaScript

Last Updated : 23 Jul, 2025

Here are the most used methods to sort characters in a string using JavaScript.

Using split(), sort(), and join()

The most simple way to sort a string is to first convert it to an array of characters, sort the array, and then join it back into a string.

JavaScript


 let s1 = "javascript";
let s2 = s1.split('').sort().join('');
console.log(s2);

Output

aacijprstv

Using Array.from() with sort()

Similar to split(), you can also use Array.from() to convert the string to an array of characters, then apply sort() and join() to get the sorted result.

JavaScript


 let s1 = "javascript";
let s2 = Array.from(s1).sort().join('');
console.log(s2);

Output

aacijprstv

Using a for Loop and Custom Sorting

For custom sorting (e.g., sorting by frequency, case-insensitivity), you can convert the string to an array and use a for loop to implement custom sorting logic.

JavaScript


 let s1 = "JavaScript";
let s2 = s1
    .split("")
    .sort((a, b) => a.localeCompare(b, undefined, { sensitivity: "base" }))
    .join("");
console.log(s2);

Output

aaciJprStv

Using reduce() with Sorting Logic

If you need more complex sorting, reduce() can help by building a sorted string as it processes each character, but this approach is less efficient and less commonly used.

JavaScript


 let s1 = "javascript";
let s2 = s1
    .split("")
    .reduce((acc, char) => acc + char, "")
    .split("")
    .sort()
    .join("");
console.log(s2);

Output

aacijprstv

The split(), sort(), and join() approach is the most popular and efficient for basic character sorting in a string.

Please refer Sort a String for different algorithms and their complexities to sort a string.

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