[erlang-questions] Charging your phone with Erlang
Sat Feb 7 12:50:32 CET 2009
Here's a little tip.
Imagine you're in a hotel room with your laptop, but you forgot your phone
charger. Luckily, you can plug in the lap-top, connect your phone to it with
a USB cable, and then the phone charges... but only while the laptop remains
awake. So you need a way to prevent Windows (in my case) from putting the
laptop into stand-by mode during the night.
Simple! Start the Erlang shell, and type
1> F=fun(F)->F(F)end, F(F).
The shell will sit there 'till morning, keeping your machine awake and your
phone charging. (Thank you, tail-call optimisation!)
It's no doubt more environmentally friendly to remember your phone charger,
but I'm only human and this tip has served me well a number of times!
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