How can I use regex to validate email addresses?
An example of an AI chatbot conversation about regex for validating email formats.
How can I use regex to validate email addresses?
You can use a regex pattern like ^[\w-.]+@[\w-]+.[a-zA-Z]{2,4}$ to validate email addresses.
Can you explain how this regex works?
Sure! It checks for a sequence of characters before the '@', followed by a domain name and a top-level domain.
What if I want to allow subdomains?
You can modify the regex to ^[\w-.]+@[\w-]+(.[\w-]+)+.[a-zA-Z]{2,4}$ to include subdomains.
Are there any common pitfalls when using regex for email validation?
Yes, regex can be too strict or too lenient. It's important to balance validation with usability.
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