RegexWars
Tier 3 · Warlockreplace

Collapse The Runs

Squash every run of the same repeated character down to one of it.

Your pattern0 chars · par 9
//
Flags
Start typing — tests run as you go.0 of 4 visible tests passing
Test cases
  • aaabbbccc→ "abc"
  • hello→ "helo"
  • aa→ "a"
  • abc→ "abc"

+ 3 hidden tests, checked when you submit. They are what stops a pattern that only fits the examples above.