Tell Ruby Program to Wait some amount of time

Question

How do you tell a Ruby program to wait an arbitrary amount of time before moving on to the next line of code

User · Answer

sleep 6 will sleep for 6 seconds  For a longer duration  you can also use sleep 6 minutes  or sleep 6 hours

User · Answer

I find until very useful with sleep  example   gt  time   Time now  gt  sleep 2 seconds until Time now  gt  time   10 seconds   breaks when true   or something like  gt  sleep 1 seconds until  req loading   suggested by ohsully

User · Answer

Like this sleep no of seconds  Or you may pass other possible arguments like  sleep 5 seconds  sleep 5 minutes  sleep 5 hours  sleep 5 days

User · Answer

This is an example of using sleep with sidekiq require  sidekiq   class PlainOldRuby   include Sidekiq  Worker    def perform how hard  quot super hard quot   how long 10      sleep how long     puts  quot Workin    how hard  quot    end end  sleep for 10 seconds and print out  quot Working super hard quot

User · Answer

Like this   sleep num secs    The num secs value can be an integer or float   Also  if you re writing this within a Rails app  or have included the ActiveSupport library in your project  you can construct longer intervals using the following convenience syntax   sleep 4 minutes    or  even longer    sleep 2 hours   sleep 3 days    etc   etc    or shorter sleep 0 5    half a second

User · Answer

Implementation of seconds minutes hours  which are rails methods  Note that implicit returns aren t needed  but they look cleaner  so I prefer them  I m not sure Rails even has  days or if it goes further  but these are the ones I need   class Integer    def seconds       return self    end    def minutes       return self   60    end    def hours       return self   3600    end    def days       return self   86400    end end   After this  you can do  sleep 5 seconds to sleep for 5 seconds  You can do sleep 5 minutes to sleep for 5 min  You can do sleep 5 hours to sleep for 5 hours  And finally  you can do sleep 5 days to sleep for 5 days    You can add any method that return the value of self    amount of seconds in that timeframe    As an exercise  try implementing it for months

User · Answer

Use sleep like so   sleep 2   That ll sleep for 2 seconds   Be careful to give an argument  If you just run sleep  the process will sleep forever   This is useful when you want a thread to sleep until it s woken

[ruby] Tell Ruby Program to Wait some amount of time

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