Type Packages

Check file extension name

Detect if a file is a font

Returns true if an object is an iterator.

Check if a Buffer/Uint8Array is a SWF file

A module to check if content-type is an office document.

Check if a Buffer/Uint8Array is an OPUS audio file

Validate if a value is a positive integer between 0 & Number.MAX_SAFE_INTEGER

Good judgment of object type.

Infer a JSON-LD @context from a readable stream of tabular data.

Generate TypeScript declaration files for .vue files

Base class for easily creating meaningful and quiet by default Error classes with sane defaults and assertion in mind.

List of all javascript types. Used and useful for checking, validation, sanitizing and testing. Like isStream, isPromise, isWeakset and etc.

A library for more efficient data transfers by separating the structure from the values and storing each as binary data

A simple, expressive way to validate data in JavaScript.

Types and run time type checking for JavaScript

Type-safe SQL builder using ES2015 template tags

Type cop

Check the types of variables, arguments and other values where necessary

An extensible TypeScript type builder that produces a function to verify types

Determine the variable type.