Tier 7 · Apprenticematch
Not A Letter
Match any string that contains a character which is not an A–Z letter.
A ^ as the first character inside [] negates the class: [^abc] means "any one character that is not a, b or c".
Your pattern0 chars · par 9
//
Flags
Start typing — tests run as you go.0 of 6 visible tests passing
Test cases
abc1must matchhello worldmust matchthe space counts
!must matchuser@hostmust matchany non-letter at all, not just the ones above
abcmust not matchHelloWorldmust not match
+ 7 hidden tests, checked when you submit. They are what stops a pattern that only fits the examples above.