On: Sigils are underappreciated (2022)

[kqr]

One of the things sigil allow you to do is overload other syntax. The example I usually bring up is the difference between

    @hash{a,b,c}

which returns a list containing the values associated with keys a, b, and c; and on the other hand

    $hash{a,b,c}

which returns the single item associated with the key constructed from concatenating a, b, and c (used to emulate a three-dimensional array.)