type-is

Infer the content-type of a request.

v1.6.18 URL: https://unpkg.com/type-is@1.6.18/index.js

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content type checking

@sindresorhus/is

Type check values

v7.0.1 URL: https://unpkg.com/@sindresorhus/is@7.0.1/index.js

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type types is check checking validate validation utility util typeof instanceof object assert assertion test kind primitive verify compare typescript typeguards types

environment

Check which JavaScript environment your code is running in at runtime: browser, Node.js, Bun, etc

v1.1.0 URL: https://unpkg.com/environment@1.1.0/index.js

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type-check

type-check allows you to check the types of JavaScript values at runtime with a Haskell like type syntax.

v0.4.0 URL: https://unpkg.com/browse/type-check@0.4.0/lib/

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type check checking library

typical

Isomorphic, functional type-checking for Javascript

v7.3.0 URL: https://unpkg.com/typical@7.3.0/index.js

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type checking check value valid is detect number object plainobject array like defined string boolean function promise iterable class primitive isstring isclass isiterable isdefined isobject isomorphic async is-async es6 es2015