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crocks
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A collection of well known Algebraic Datatypes for your utter enjoyment.
crocks.dev
evilsoft/crocks
crocks
/
predicates
/
isBoolean.js
10 lines
(7 loc)
•
231 B
JavaScript
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/**
@license
ISC License (c) copyright 2017 original and current authors */
/**
@author
Ian Hofmann-Hicks (evil) */
// isBoolean : a -> Boolean
function
isBoolean
(
x
) {
return
typeof
x ===
'boolean'
}
module
.
exports
= isBoolean