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| author | Jasper Ras <jras@hostnet.nl> | 2025-08-21 22:09:29 +0200 |
|---|---|---|
| committer | Jasper Ras <jras@hostnet.nl> | 2025-08-21 22:09:29 +0200 |
| commit | 27514d58573ce1f844af4ea60afa72c7f58f1cd7 (patch) | |
| tree | 4b16c31f73cb72435d03d5e105261143f8ca135f /Lookahead.md | |
| parent | 22675cd8dc75d8b8d4b0f818f5b093efbc364802 (diff) | |
Diffstat (limited to 'Lookahead.md')
| -rw-r--r-- | Lookahead.md | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/Lookahead.md b/Lookahead.md new file mode 100644 index 0000000..5405b91 --- /dev/null +++ b/Lookahead.md @@ -0,0 +1,11 @@ +v the match any statements are like: match `hallo`, `hallobob`, `hallobier` + +Negative lookahead: `hallo(?!blaat)`: match any hallo but not in halloblaat +Positive lookahead: `hallo(?=blaat)`: only match hallo in halloblaat + +--- + +Negative lookbehind: `(?<!hallo)blaat` : match any blaat except in halloblaat +Positive lookbehind: `(?<=hallo)blaat` : only match blaat in halloblaat +> Look behind has limited browser compatibility + |