Sort a string alphabetically using a function in JavaScript

Sort a string alphabetically by creating a user-defined function to perform sorting. This function is useful when we receive a random set of characters as a string and we want it to be sorted in an alphabetical manner. To perform this task we will use multiple inbuilt methods and combine them to create a helper function.

These are the following methods:

Approach 1: Using split() method, sort() method and join() method

• Convert the string into an array using split() method.
• Sort the array using the sort() method
• Convert the sorted array back to String using join() method.

Note: We will use the concept of method chaining to reduce the lines of code.

Example: In this example, we will implement the above approach.

Javascript

function sortAlpha(word) {
    return word.split("")
               .sort()
               .join("");
}

let randomWord = "sdfjwefic";
console.log(sortAlpha(randomWord))

Output:

cdeffijsw

Approach 2: Using spread operator, sort() method and localeCompare()

• Destructure the string into an array using the spread operator
• Sort the array by passing a callback function inside sort() method
• Use the inbuilt localeCompare() and join() methods to return the sorted String

Example: We will use the method chaining and arrow function syntax to make the code short and readable.

Javascript

function sortAlpha(word) {
    return [...word].sort((a,b)=>a.localeCompare(b)).join("")
}

let randomWord = "sdFjwefiC";
console.log(sortAlpha(randomWord));

Output:

CdefFijsw

Approach 3: Using Lodash _.sortBy() Method

Lodash _.sortBy() method help us to sort the given string alphabetically.

Example: In this example, we are using Lodash _.sortBy() method.

Javascript

const _ = require('lodash');
let randomWord = "sdfjwefic";
const sortedStr = _.sortBy([...randomWord]).join("");
console.log(sortedStr);

Output:

cdeffijsw