String

Strings support all JSON escape sequences, with addition of escaped single-quotes (for single-quoted strings)

a = "'\" NUL:\u0000"
b = '\'" NUL:\u0000'

concat: (string, string) => string

s1 = concat("foo", "bar") // foobar
s2 = "foo" + "bar" // foobar
s3 = "foo" + 3 // foo3