Regular Expressions in C#

Regular Expressions in C# — a practical guide to C# regular expressions with clear examples you can reuse in real projects.

C# Tutorial Series (95/121). Prefer one article? Read the complete C# tutorial.

Short description

Cache compiled regex for hot paths; prefer simple parsing when possible.

Regex

var ok = Regex.IsMatch(email, @"^[^@s]+@[^@s]+.[^@s]+$");