In this challenge, we use regular expressions (RegEx) to remove instances of words that are repeated more than once, but retain the first occurrence of any case-insensitive repeated word. For example, ...

I was involved in a recent discussion on the "best" way to remove a given parameter from a URL string. The conversation began with using string primitives to split and join the parameter, a method ...

The first half of this tutorial introduced you to regular expressions and the Regex API. You learned about the Pattern class, then worked through examples demonstrating regex constructs, from basic ...

Salesforceの数式（Formula）では、REGEX() 関数を使用すると 入力データのフォーマットを厳密に検証 できます。例えば、メールアドレスの形式チェック、郵便番号の適正確認、電話番号のフォーマット制御などに活用できます。 本記事では、REGEX() 関数の基本的 ...