Sleep: Difference between revisions

</lang>

=={{header|Lua}}==

<lang Lua>

function sleep (s)

local t0 = os.time()

repeat until os.time() - t0 >= s

end

local seconds

repeat -- Keep asking until input is a valid number

io.write("Enter number of seconds to sleep: ")

seconds = tonumber(io.read())

until seconds ~= nil

print("Sleeping...")

sleep(seconds)

print("Awake!")