In this tutorial you’ll learn how to check if a string is a palindrome using JavaScript. Get my free 32 page eBook of JavaScript HowTos 👉
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So there are a couple of ways to check is a string is a palindrome in JavaScript and we’ll first look at what seems to be the most logical way of doing it which is using a for loop.
In the tutorial i’ll take you through the process of looping through a string to check if each character at opposite ends of the string are the same.
This process is a pretty simple way to check a string (or number) is a palindrome or not in JavaScript however we’ll look at one problem with this which is if the string has unexpected spaces, commas or other symbols. By definition, as long as the actual letters match up (without any of the symbols) then the string is technically still a palindrome so we should accept it.
So we need a way to remove these characters that we don’t want to check for in our palindrome with JavaScript. You’ll learn a simple way to do this using a Regular Expression.
Once you’ve learnt a way to check for a palindrome using a for loop, we’ll look at some ways of doing it with the javascript reverse function and also a bit of a more esoteric method using a filter function to remove items from the array if they don’t match the end of the string.
Other videos in the JavaScript Snippets series:
Find the largest number in an array JavaScript Tutorial:
https://youtu.be/fOFSmCjvcFYHow to find the longest word in a String with JavaScript:
https://youtu.be/j9cAav7VIv4How to reverse a String in JavaScript Tutorial:
https://youtu.be/k7zzWvQaEhcJavascript String Length: How to determine the size of a string:
https://youtu.be/OO0_9gq8NNIJavaScript join method: How to merge arrays into one value:
https://youtu.be/90MVWda5DlMJavaScript How To Remove An Item From Array Tutorial:
https://youtu.be/UvohHcj9I-sJavascript How To Convert String To Number Tutorial:
https://youtu.be/K-Twvsg3K_MJavaScript Create HTML Element: How to dynamically add tags to your pages:
https://youtu.be/VsXCK_2DJzAJavaScript String Contains: How to check a string exists in another:
https://youtu.be/uLT9iPccVZsLink JavaScript to HTML: How to run your JavaScript code in the browser:
https://youtu.be/821C5aJ3SLMJavaScript Copy Array: How to make an exact copy of an array in JavaScript:
https://youtu.be/5rybkWfeh-AJavaScript Capitalize First Letter: How to make strings and arrays sentence case:
https://youtu.be/8IEI-7fj2j4Javascript Print To Console Tutorial: Different ways to output data to the console:
https://youtu.be/pkFbigsR7jI Channel Handle @codebubb
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