Elixir Sleep / Wait for 1 Second

Question

How to sleep / wait for one second?

Best I could find was something like this (in iex):

IO.puts "foo" ; :timer.sleep(1); IO.puts "bar"

But both of my puts happen with no delay.

Also in Elixir 1.3 you can use `Process.sleep` instead of calling erlang. — ssbb, May 09 '16 at 09:23

Jeremie Ges · Accepted Answer · 2016-05-09T01:31:32.197

112

Timer uses milliseconds not seconds, update to:

IO.puts "foo" ; :timer.sleep(1000); IO.puts "bar"

Documentation of :timer in Erlang's doc:

Suspends the process calling this function for Time amount of milliseconds and then returns ok, or suspend the process forever if Time is the atom infinity. Naturally, this function does not return immediately.

http://erlang.org/doc/man/timer.html#sleep-1

edited May 09 '16 at 01:31

answered May 09 '16 at 01:22

Jeremie Ges

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There are useful helpers in the timer module to specify time intervals. For example: `:timer.sleep(:timer.seconds(1))` – Paweł Obrok May 09 '16 at 08:17

score 87 · Answer 2 · edited Oct 15 '18 at 15:20

87

Since Elixir 1.3 you can use Process.sleep/1:

Process.sleep(1000)

The argument is in milliseconds.

edited Oct 15 '18 at 15:20

Marius Butuc

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answered Mar 25 '18 at 00:08

Alexandre L Telles

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Elixir Sleep / Wait for 1 Second

2 Answers2