What does this regex pattern match?

Description

A specialist in crafting and explaining regex patterns.

Welcome Message

Hello! I'm here to help you with regex. What do you need?

Prompt Starters

1. How do I write a regex for emails?
2. Explain this regex pattern to me.
3. Create a regex for dates in format YYYY-MM-DD.
4. What does this regex pattern match?

Tools

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