AI for Regex: Stop Crying Over Patterns

Regex looks like cat-walked-on-keyboard nonsense. AI is genuinely good at writing it. But regex breaks in weird ways, so always test with real examples before shipping.

Some examples

• Ask: 'Regex to match a US phone number in any format.'
• Have AI explain what /^\w+@\w+\.\w+$/ does line by line.
• Get AI to write a regex AND a list of strings it should and shouldn't match.
• Ask AI to debug a regex that's not catching one weird edge case.

Try it!

Pick a string format you deal with (like a date or a username). Ask AI for the regex plus 5 strings to test against. Run it.

Practice this safely

Try this with a school, hobby, or family example where the stakes are low. Use the AI output as a draft you can question, not as the final answer.

1. 1Ask AI to explain regex in plain language, then underline anything that sounds uncertain or too broad.
2. 2Give it one detail from "AI for Regex: Stop Crying Over Patterns" and ask for two possible next steps plus one reason each step might be wrong.
3. 3Check pattern matching against a trusted source, teacher, adult, expert, or original document before you use it.