Random string generator.
but with both upper and lower case letters and arbitrary lengths.
Useful for creating fast, not cryptographically secure salts.
// base62 by defaultvar rndm =var salt =
var salt = rndm(length)
var salt = rndm.base62(length)
var salt = rndm.base36(length)
var salt = rndm.base10(length)
var random = rndm.create(characters)
Create a new random generator with custom characters.