A searchable quick reference for XPath — axes, node tests, predicates, functions, common recipes, and CSS selector equivalents.
JSONPath Cheatsheet
A searchable quick reference for RFC 9535 JSONPath — selectors, descendants, slices, filters, and functions, with notes on where older implementations differ.
Date Format Tokens Cheatsheet
A searchable quick reference mapping date/time format tokens across strftime, date-fns/Moment, and Go's reference layout.