is-generator-fn

Check if something is a generator function

v3.0.0 URL: https://unpkg.com/is-generator-fn@3.0.0/index.js

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generator function func fn is check detect yield type

kind-of

Get the native type of a value.

v6.0.3 URL: https://unpkg.com/kind-of@6.0.3/index.js

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arguments array boolean check date function is is-type is-type-of kind kind-of number object of regexp string test type type-of typeof types

@stdlib/assert-is-function

Test if a value is a function.

v0.2.2 URL: https://unpkg.com/@stdlib/assert-is-function@0.2.2/lib/index.js

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stdlib stdassert assertion assert utilities utility utils util function is isfunction type check valid validate test

is-extendable

Returns true if a value is a plain object, array or function.

v1.0.1 URL: https://unpkg.com/is-extendable@1.0.1/index.js

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array assign check date extend extendable extensible function is object regex test

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