Type Packages

Predicate Library

Simple type checks

A type safe JS runtime

Checks if a given function is deprecated.

Tiny type/argument validation library.

Robust and comprehensive type checking library for node and the browser

Check if a buffer/Uint8Array is an AVI file

Check if a Buffer/Uint8Array is a BPG image

Check if a Buffer/Uint8Array is a MIDI file

Check if a Buffer/Uint8Array is an ISO image

is this a JSON-based media type (rfc6838)?

Check if a Buffer/Uint8Array is a MOV file

Check if a Buffer/Uint8Array is a MKV video

Check if a Buffer/Uint8Array is a 7Z archive

Check if a Buffer/Uint8Array is a WEBM video

Is it one?

Intuitive type checking functions exposed globally

Check if a Buffer/Uint8Array is a XZ file

Check if a value is a VFileMessage object

Check if a buffer/Uint8Array is an XCF image