How to Check Palindromes in JavaScript: A Simple yet Effective Function

Imran MohsinImran Mohsin
2 min read

Are you interested in learning about palindromes? Perhaps you're working on a project that requires you to check if a given string is a palindrome. In this blog post, we'll explore how to create a simple JavaScript function to do just that.

What are Palindromes?

Are you interested in learning about palindromes? Perhaps you're working on a project that requires you to check if a given string is a palindrome. In this blog post, we'll explore how to create a simple JavaScript function to do just that.


Creating a JavaScript Function for Palindrome Check

To create a function in JavaScript that checks if a string is a palindrome, we can follow these steps:

  1. Convert the input string to lowercase.

  2. Split the string into an array of individual characters.

  3. Reverse the character array.

  4. Join the reversed array back into a string.

  5. Compare the original string with the reversed string.

Here's how you could implement this in JavaScript:

function isPalindrome(str) {
  str = str.toLowerCase();
  return str === str.split('').reverse().join('');
}

Example Usage

Let's test our function by checking if some common palindromes and non-palindromes are indeed palindromes.

console.log(isPalindrome('radar'));  // true
console.log(isPalindrome('hello'));  // false

As you can see, the isPalindrome function correctly identifies whether a given string is a palindrome or not.


Conclusion

Creating a JavaScript function to check palindromes is a straightforward process. By converting strings to lowercase and comparing them with their reversed versions, we can determine if they are palindromes. This guide has shown you how to implement such a function in your own code. Happy coding!


This is my first blog so do give me feedback :)

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Written by

Imran Mohsin
Imran Mohsin

Just a tech nerd vibing and dropping knowledge from the internet for all my fellow geeks out there. Let's geek out together! ๐Ÿš€๐Ÿ’ป