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

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

@stdlib/assert-is-boolean

Test if a value is a boolean.

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

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stdlib stdassert assertion assert utilities utility utils util boolean bool true false isboolean isbool is type check primitive object

extra-boolean

Boolean data type has two possible truth values to represent logic.

v1.11.0 URL: https://unpkg.com/extra-boolean@1.11.0/index.js

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extra boolean algebra logic eqv imp and count eq imply is nand neq nimply nor not or parse select xnor xor

simple-bool

A simple set of functions that return a boolean.

v4.1.0 URL: https://unpkg.com/simple-bool@4.1.0/index.js

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bool boolean is type typeof if yes no yesno evaluate