Regular Expressions

Regular Expressions (regex) are patterns that we can use to search for information of interest in a set of strings ¹ .

This zettel is specific about Ruby and Jacascript regex. When it is not specified, it uses Ruby’s version of regex.

Regex Documentation

• Ruby Doc
• MDN web docs (Javascript)

Online regex editor

• Rubular (Ruby)
• Scriptular (Javascript)

Portals

• Basic Regex
• Regex Options
• Regex Shortcuts
• Regex Anchors
• Regex Quantifiers
• Regex Miscellaneous