is-descriptor
Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.
is-data-descriptor
Returns true if a value has the characteristics of a valid JavaScript data descriptor.
is-accessor-descriptor
Returns true if a value has the characteristics of a valid JavaScript accessor descriptor.
typical
Isomorphic, functional type-checking for Javascript
filenamify
Convert a string to a valid safe filename