cat

cat

Concatenate a bunch of things together into a single text.
cat will call to-text on each argument before concatenation.

(cat null true $space $x $space 'foo "bar" '($b $a $z))
    -> "nulltrue x foobarbaz"

cat accepts an option with:, a text that will be used to join the others.

(cat null true $x 'foo "bar" '($b $a $z) with: "/")
    ->"null/true/x/foo/bar/baz"