Regular Expressions 101

Pro

^start of line

Negative Lookahead(?!.*\?)

.*any Unicode character (except for line terminators), repeated any number of times

\?the literal ? (63₁₀ / 77₈ / 3F₁₆)

.*any Unicode character (except for line terminators), repeated any number of times

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

25 tokens

^(?!.*\?).*

https://www.example.com/?var=yes
https://www.example.com/var=yes