The first time I ever encountered a regular expression was many years ago now, but I still remember my first thoughts on it: What is this string-like thing? I don’t want to touch it, it looks scary. I ...

1. はじめに：JavaScriptの文字列操作を強力にする正規表現 JavaScript開発において、テキストデータの操作は不可欠です。ユーザー入力の検証、キーワード検索、文字列の置換など、複雑な処理を効率的かつスマートに行うための強力なツールが「正規表現 ...

A regular expression (shortened as regex or regexp), sometimes referred to as rational expression, is a sequence of characters that specifies a match pattern in text. Usually such patterns are used by ...

Regular expressions have been part of the programmer’s toolkit for a long time, with their creation by Stephen Cole King in 1951. Their ability to match word patterns make them a powerful tool for ...

Description This library is a modified version of Raphael Graf’s ActionScript Expression Parser. When I wrote the JavaScript Function Plotter, I wanted a better alternative to using JavaScript’s eval ...