Somewhat obscure, but I think the following is cute:

sleep($|=print) for split '', $string;

[download]

print returns 1 if it's successful.

perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

In reply to Re^4: Letter by letter by tobyink
in thread Letter by letter by DaveMonk

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