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Test and validate regular expressions in real-time
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Common patterns
[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}
https?://[\w\-]+(\.[\w\-]+)+[/#?]?.*
^\d{2,3}-\d{3,4}-\d{4}$
^\d{4}-(0[1-9]|1[0-2])-(0[1-9]|[12]\d|3[01])$
^((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$