Last Updated
：2025/12/04
positive lookahead
Noun
countable
uncountable
Japanese Meaning
正規表現において、パターンがマッチする前に後続の文字列が存在するかを検証する手法。 / 正規表現で実際に文字列を消費せず、次の文字が特定のパターンに一致するかを確認する仕組み（シンボル：?=）。
（ plural ）
Quizzes for review
(regular expressions) The analysis of the subsequent characters presence before the regular expression is matched (symbol: ?=).
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See correct answer
positive lookahead
When debugging the regex, I used a positive lookahead to ensure the next characters matched 'abc' without consuming them.
See correct answer
When debugging the regex, I used a positive lookahead to ensure the next characters matched 'abc' without consuming them.
音声機能が動作しない場合はこちらをご確認ください
English - English
Word Edit Setting
- Users who have edit permission for words - All Users
- Screen new word creation
- Screen word edits
- Screen word deletion
- Screen the creation of new headword that may be duplicates
- Screen changing entry name
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Sentence Edit Setting
- Users who have edit permission for sentences - All Users
- Screen sentence deletion
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
Quiz Edit Setting
- Users who have edit permission for quizzes - All Users
- Users authorized to vote on judging - Editor
- Number of votes required for decision - 1
