Hashes continued

Also unlike objects, hash keys do not have to be strings. Any value which is Hashable is permitted. If an object is Hashable, it means another distinct object representing the same value can be compared against it in a consistent way.

$hash["One"] = 1
$hash[2] = "Two"
$hash[/regex/] = "Not sure why you'd do this, but you can"

Hashes, too, can span multiple lines.

$hash = [
    key:        "Value",
    other:      11,
    /regex/:    "That one has a weird non-string key",
    lastOne:    "no comma needed after this"
]

There's even such thing as an ordered hash.

$hash = OrderedHash()
$hash["first"]  = "this is the first item"
$hash["second"] = "this is the second item"

for ($k, $v) in $hash {
    say("$k = $v")
}

# It'll always spit them out in the order they were added

Next: Typed lists and hashes