boolbase
two functions: One that returns true, one that returns false
has-values
Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.
simple-bool
A simple set of functions that return a boolean.
fp-booleans
Utilities to apply boolean logic (not, and, or) to functions and higher-order functions. Tiny, tested and composable
boolchain
Boolchain - chainable boolean functions