Pattern

Flags

gGlobal — find all matches, not just the first.iCase-insensitive — ignore letter case.mMultiline — ^ and $ match the start/end of each line.sDot-all — . also matches line breaks.uUnicode — treat the pattern as a sequence of Unicode code points.ySticky — match only starting at the exact last-match position.

Test string

Matches 0Explanation