Back to Basics: Regular Expressions
Regular expressions have been around since the early days of computer science. They gained widespread adoption with the introduction of Unix. A regular expression is a notation for describing sets of character strings. They are used to identify patterns within strings. There are many useful applications of this functionality, most notably string validations, find and replace, and pulling informati
1
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
処理を実行中です
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
Rails, validates email exclusion
