Is there a Bash GNU crunch equivalent in JavaScript? [closed]

is there a GNU crunch equivalent that works in JS? In case you don’t know crunch:

john@doe:~$ crunch 4 4
aaaa
aaab
aaac
...
bbba
bbbb
bbbc
bbbd
...
zzzw
zzzx
zzzy
zzzz

Now, I would like an equivalent of the above command that works in JS, so does anyone know what is the equivalent in JS? thanks.