From: Chris White <cwprogram@...>
Date: 2011-09-14T00:31:14+09:00
Subject: Re: Using a loop to run similar commands


> Is there a neater way to do this, by using a loop?
>
> create1 = agent.get(t1)
> create2 = agent.get(t2)
> create3 = agent.get(t3)
> create4 = agent.get(t4)
> create5 = agent.get(t5)
> create6 = agent.get(t6)
> create7 = agent.get(t7)
> create8 = agent.get(t8)
> create9 = agent.get(t9)
> create10 = agent.get(t10)
> create11 = agent.get(t11)
> create12 = agent.get(t12)

There's a lot of variable name repetition going on here. Instead I'd recommend using an array:

t = [val1, val2...]

Then you can store the end results in an array as well. Here is a more simplified example showing the basis of what you're trying to do:

irb(main):006:0> test = [1,2,3,4]
=> [1, 2, 3, 4]
irb(main):007:0> create = test.each_with_object([]) { |element, holder| holder << element.to_s }
=> ["1", "2", "3", "4"]

In this case, you have an array with all the objects you want to run agent.get on. Then you loop through them using each_with_object, which passes in an array holder which has the results of calling a method on each element (in this case to_s). The result of this call will be a new array with the results of to_s called on each element.

Regards,
Chris White
http://www.twitter.com/cwgem