Tips
Validating Strings as Alphanumeric Using Regex in JavaScript
2025-04-27

To validate alphanumeric characters using regular expressions, use ^[a-zA-Z0-9]+$. This pattern matches strings composed of one or more alphanumeric characters, such as "3DModel".

Read more
Tips
Retrieve a substring from the end in JavaScript
2025-02-11

To extract a substring from the end of a string in JavaScript, you can use a regular expression to get the characters starting from the position which is the length of the string minus the length of the desired substring.

Read more

photo by：Justin Kauffman