Regular Expressions 101

&hello=the literal text &hello= (case insensitive)

Character Class[A-z 0-9]+

+matches at least one character from the set below:

A-zone character from A (65₁₀) to z (122₁₀) (case insensitive)

the literal (32₁₀ / 40₈ / 20₁₆)

0-9one character from 0 (48₁₀) to 9 (57₁₀)

&op=the literal text &op= (case insensitive)

Negated Character Class[^&hello]*

*matches any number of characters outside the set below:

&the literal & (38₁₀ / 46₈ / 26₁₆)

hthe literal h (104₁₀ / 150₈ / 68₁₆) (case insensitive)

ethe literal e (101₁₀ / 145₈ / 65₁₆) (case insensitive)

lthe literal l (108₁₀ / 154₈ / 6C₁₆) (case insensitive)

othe literal o (111₁₀ / 157₈ / 6F₁₆) (case insensitive)

Global pattern flags

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

i modifier: insensitive. Matches without distinguishing uppercase and lowercase letters

No unit tests · Add a test to get started

Search reference

Regular Expression

&hello=[A-z 0-9]+&op=[^&hello]*

There are no unit tests, click to add some.