Convenient

A bunch of functions that I keep re-using

Contract

all functions are as small as possible
no magic
functional when possible, but no dogma
snake_case names
each function is exported as a name export and as a default
all functions work in the browser and the server. When functionality doesn't make sense in one environment, then the function is replaced with a harmless procedure that does nothing
all and any async operations return a promise, unless it really doesn't make sense
no stubs, polyfills, or other workarounds; you bring those yourself
fully tested (not yet, but coming up)

MIT