Become a Regex expert in 4 minutes
┌─────────────────────────────────┐ │ /^[A-Z]\w+@\w+\.\w{2,}$/ │ │ ┌───┐ ┌──┐ ┌──┐ ┌──┐ ┌────┐ │ │ │ ^ │→│\w│→│ @ │→│\.│→│ $ │ │ │ └───┘ └──┘ └──┘ └──┘ └────┘ │ │ │ │ Pattern Matching Made Simple │ └─────────────────────────────────┘ What is Regex Regular expressions (regex) are patterns used to match and manipulate text. Think of them as a super-powered search function that lets you find specific patterns in strings—like “all email addresses,” “phone numbers,” or “words starting with ‘cat’"—instead of just exact matches. They’re everywhere: text editors, command-line tools, programming languages, and even your IDE’s search-and-replace feature. ...