Standard Library

Built-in Ferret functions and namespaces provided by the Ferret core runtime.

Registered namespace segments and host-function names are case-insensitive in FQL. This reference uses their single canonical lowercase qualified spelling.

This reference documents Ferret 2.0.0-alpha.55. It is generated from the published API Reference and its matching API Catalog.

Category ArraysFunctions for creating, transforming, querying, and modifying arrays. Category CollectionsFunctions for working with collections and collection values. Category CryptoFunctions for hashing, encoding, and generating secure values. Category Date & TimeFunctions for creating, parsing, formatting, and manipulating dates and times. Category EncodingFunctions for encoding, decoding, serializing, and escaping values. Category I/OFunctions for working with files, networks, and other input and output operations. Category MathFunctions for mathematical operations and numeric calculations. Category ObjectsFunctions for creating, transforming, querying, and modifying objects. Category PathFunctions for constructing, inspecting, and manipulating paths. Category RandomPseudo-random value generation functions in the random namespace. Category StringsFunctions for creating, transforming, searching, and inspecting strings. Category TestingFunctions for assertions and testing Ferret queries. Category TypesFunctions for inspecting, checking, and converting value types. Category UtilitiesGeneral-purpose utility functions.

Next steps

Extract Query document data Work with HTML, XML, JSON, and other document-like data. Host applications Embed Ferret Run Ferret inside Go and JavaScript applications. Test Use Lab Run Ferret test suites against local, HTTP, and browser-backed runtimes.