From: 7stud -- <bbxx789_05ss@...>
Date: 2009-08-29T06:18:50+09:00
Subject: Re: Error with an array of strings

Tom Smith wrote:

1)
$ ri Kernel#gets

------------------------------------------------------------ Kernel#gets
     gets(separator=$/)    => string or nil
------------------------------------------------------------------------
     Returns (and assigns to +$_+) the next line from the list of files
     in +ARGV+ (or +$*+), or from standard input if no files are present
     on the command line.


So you can just use gets instead of STDIN.gets.


2)
number = "12"
number.to_i
puts number.class

--output:--
String


3) This does nothing:

total = [1, 2, 3]
all = total.slice(0..total.length)
p total

--output:--
[1, 2, 3]

>
> Needless to say, I'm getting an error with the averageall, since (I
> assume) it's trying to divide by strings. 
>

No, you are getting an error because you are trying to divide an array 
by an integer.   What do you expect the result to be?


> I figure I need to convert the
> array of strings to an array of integers. 

puts [1, 2, 3] / 10

--output:--
 undefined method `/' for [1, 2, 3]:Array (NoMethodError)

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