Type Packages

Elegant and battle-tested validation library for type-safe input data for TypeScript

Reliable & easy Js & ES Type detection

Detect the MIME type of a Buffer, Uint8Array, ArrayBuffer, ReadableStream, file path and file name, with async method.

A function argument organizer

Automatically adds datepickers to input[type=date] on IE, Firefox, and OS X Safari.

Check if a String/Buffer is TTF

Check if a String/Buffer/ArrayBuffer is OTF

assertion library that throws user-specified error types (accepts error class and message)

typeof number, or use a default

A trie implementation that maps keys to objects for rapid retrieval by phrases. Most common use will be for typeahead searches.

Check if a value is something

An object structure and type validation library

Determine type of a variable

TypeScript transformer that generates run-time type-checks.

Set of various predicates for type checking, assertions, filtering etc

GraphQL Date Type

Infer typescript types from your JSON schemas!

Checks for URLs during typing and pasting and automatically converts them to links.

Check types

Validates if a value is a JavaScript object.