How can I get the result of this equation

ruby-talk
1

I have written this a script like this:

values = [10, 20, 30].each {|value| value + (value * 10)}

puts value

In this case, I get:
undefined local variable or method `value' for main:Object (NameError)

I'm trying to see the result of the equation value + (value * 10)

What should I do?

Thanks.

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2

http://www.ruby-forum.com/topic/213052

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3

Ali,

I suspect the example you're trying was actually printing out
value*s*(...s! plural NOT value)

this would then make sense as a demonstration that the 'each' loop did not
alter the array

:slight_smile:

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On Wed, Jul 14, 2010 at 12:26 AM, Abder-Rahman Ali < abder.rahman.ali@gmail.com> wrote:

I have written this a script like this:

values = [10, 20, 30].each {|value| value + (value * 10)}

puts value

In this case, I get:
undefined local variable or method `value' for main:Object (NameError)

I'm trying to see the result of the equation value + (value * 10)

What should I do?

Thanks.
--
Posted via http://www.ruby-forum.com/\.

4

Kenneth wrote:

Ruby garabage collector - Ruby - Ruby-Forum

Thanks Kenneth :slight_smile:

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5

more conclusively (using =)

array = [10,20,30]
array.each {|number| number = (number * 10)}
puts array

[10,20,30]

i.e. not [100,200,300]!

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On Wed, Jul 14, 2010 at 1:12 AM, James O'Brien <jeob32@gmail.com> wrote:

Ali,

I suspect the example you're trying was actually printing out
value*s*(...s! plural NOT value)

this would then make sense as a demonstration that the 'each' loop did not
alter the array

:slight_smile:

On Wed, Jul 14, 2010 at 12:26 AM, Abder-Rahman Ali < > abder.rahman.ali@gmail.com> wrote:

> I have written this a script like this:
>
> values = [10, 20, 30].each {|value| value + (value * 10)}
>
> puts value
>
> In this case, I get:
> undefined local variable or method `value' for main:Object (NameError)
>
> I'm trying to see the result of the equation value + (value * 10)
>
> What should I do?
>
> Thanks.
> --
> Posted via http://www.ruby-forum.com/\.
>
>