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I'm apparently missing something fundamental in my knowledge of classes

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Hi All,

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[#408812] create variables depending on counter — stefan heinrich <lists@...>

Hi community,

21 messages 2013/07/09

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I am trying to send an email using the code below. I am able to send the

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13 messages 2013/07/22

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This is what I want to do.

19 messages 2013/07/23
[#409102] Re: Link To Masses Of External Data In Openoffice? — Tamara Temple <tamouse.lists@...> 2013/07/24

[#409103] Re: Link To Masses Of External Data In Openoffice? — "Austin J." <lists@...> 2013/07/25

tamouse m. wrote in post #1116598:

[#409122] Re: Link To Masses Of External Data In Openoffice? — Tamara Temple <tamouse.lists@...> 2013/07/26

[#409142] Re: Link To Masses Of External Data In Openoffice? — "Austin J." <lists@...> 2013/07/26

tamouse m. wrote in post #1116750:

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17 messages 2013/07/23

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33 messages 2013/07/28
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I tried this and came up with a one-liner that seems to do it. It sorts the

[#409258] WATIR - ScriptError popup on IE - Unable to get rid of! — Graeme Halls <lists@...>

I am new to Ruby & Watir, and I am having a nightmare with IE and Script

11 messages 2013/07/31

Re: create variables depending on counter

From: Robert Klemme <shortcutter@...>
Date: 2013-07-11 10:43:20 UTC
List: ruby-talk #408868
On Thu, Jul 11, 2013 at 9:34 AM, stefan heinrich <lists@ruby-forum.com>wrote:

> Hi,
>
> > Why are the elements in the arrays not numbers?  It looks like you
> > rather
> > want to work with numbers (Fixnum) here.
>
> It's not only numbers. In some cases there are strings.
>
>
> > Can you show us what's in data?  Please make sure to present complete
> > examples, otherwise it's difficult to come up with answers - and to
> > follow
> > the discussion as well.
>
> ok sorry...
> my code to read out the tablewidget and create the array.
>
>     array = Array.new
>
>     for i in 0..rowCount - 1
>       tmp = Array.new
>       tmp << @tableWidget.item(i, 1).text.to_a
>       tmp << @tableWidget.item(i, 0).text.to_a
>       tmp = tmp[0] + tmp[1]
>
>       array << tmp
>     end
>

You can make your life a tad easier by not creating all those one element
arrays with the #to_a call:

array = row_count.times.map do |i|
  [1, 0].map! {|idx| @table_widget.item(i, idx).text}
end

Note the different spelling: in Ruby we use CamelCase only for classes and
modules and snake_case for the rest.


>     array.group_by {|s,i| s}
>

This line does nothing.  More precisely: it creates a Hash and then
immediately forgets it.


>     array= array.group_by {|s,i| s}.each {|k,v| v.map! {|s,i| i}}
>
> The 2d array looks like this after grouping
>
> {"I OFF"=>["a8", "1e"], "E OFF"=>["98", "a0"], "Emphasized ON"=>["db"],
> "I ON"=>["99"]}
>
> It seems like after using grouping by it is not an array anymore. I use
> array[0] and get a nil. How can I take only the values. I would like to
> combine all combinations only I with E and E with I. It is not working.
>

Reading the documentation sometimes really helps. :-)
http://www.ruby-doc.org/core-1.9.3/Enumerable.html#method-i-group_by


> Cheers

robert


-- 
remember.guy do |as, often| as.you_can - without end
http://blog.rubybestpractices.com/

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