5 Signs Your Regex Is Wrong (and How to Spot Them in Seconds)
javascript
dev.to
We've all been there. You write a regex, it looks correct, you deploy it... and then the bug reports roll in. Regex is deceptively tricky — what looks right often contains subtle flaws that only surface with specific inputs. Here are five telltale signs your pattern needs fixing, and how to catch them before they hit production. 1. It Matches Way More Than You Expected This is the #1 regex gotcha. You write to match HTML tags, but it swallows the entire helloworld in one match. The