How do different programming languages implement regex?

Can you explain how regex works in Python?

In Python, regex is handled by the re module. You can use functions like re.search(), re.match(), and re.findall() to work with regular expressions.

What about JavaScript? Is it different?

In JavaScript, regex is built into the language. You can create regex patterns using the RegExp object or by using slashes, like /pattern/.

How does regex in Java compare to Python?

Java uses the java.util.regex package, which provides similar functionality to Python's re module, but with some differences in syntax and methods.

Can you give me an example of a regex pattern for validating email addresses?

Sure! A common regex pattern for validating email addresses is ^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$.