From: pe medeiros <pedrosnk@...>
Date: 2012-12-11T06:50:33+09:00
Subject: Re: Dynamically create an array

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This code is not a valid hash in ruby 1.9.3.
However if I unterstood what you are trying to ask, I would take a look at
collect method for your array.

in which may return an array of the return of a given block.

e.g.

grade = {"subject"=>:math, "Jim"=>94, "Billy"=>50}
grade.collect { |key, value| value  } # [:math 94, 50]
grade.collect { |key, value| value unless key == 'subject'  } # [nil, 94,
50]

later you can use reject method of Array to remove the nil values.


2012/12/10 robert lengu <lists@ruby-forum.com>

> Hi Experts,
>
> I am trying to create an array from hash
>
> example in my hash I have value like
>
>
> grades =
> { { "subject" => english,
>            "Jim" => 94,
>            "Billy" => 58
>          }
>
>    { "subject" => math,
>            "Jim" => 90,
>            "Billy" => 80
>          }
>
>     {  "subject" => science,
>            "Jim" => 99,
>            "Billy" => 58
>          }
>
> }
>
> now i want to make an array or output like this
>
> 94,90,99
> 58,80,58
>
>
> i am looking for some help in google but no luck
>
> Robert
>
> --
> Posted via http://www.ruby-forum.com/.
>
>


-- 
Pedro Henrique de Souza Medeiros
----------------------------------
Cel: +55 (61) 9197-0993
Email: pedrosnk@gmail.com

Beautiful is better than ugly,
Explicit is better than implicit,
Simple is better than complex,
Complex is better than complicated.

The Zen of Python, by Tim Peters

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This code is not a valid hash in ruby 1.9.3.<div>However if I unterstood wh=
at you are trying to ask, I would take a look at collect method for your ar=
ray.</div><div><br></div><div>in which may return an array of the return of=
 a given block.</div>
<div><br></div><div>e.g.</div><div><br></div><div>grade =3D=A0{&quot;subjec=
t&quot;=3D&gt;:math, &quot;Jim&quot;=3D&gt;94, &quot;Billy&quot;=3D&gt;50}<=
/div><div>grade.collect { |key, value| value =A0} # [:math 94, 50]<br></div=
><div>grade.collect { |key, value| value unless key =3D=3D &#39;subject&#39=
; =A0} # [nil, 94, 50]<br>
</div><div><br></div><div>later you can use reject method of Array to remov=
e the nil values.</div><div class=3D"gmail_extra"><br><br><div class=3D"gma=
il_quote">2012/12/10 robert lengu <span dir=3D"ltr">&lt;<a href=3D"mailto:l=
ists@ruby-forum.com" target=3D"_blank">lists@ruby-forum.com</a>&gt;</span><=
br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">Hi Experts,<br>
<br>
I am trying to create an array from hash<br>
<br>
example in my hash I have value like<br>
<br>
<br>
grades =3D<br>
{ { &quot;subject&quot; =3D&gt; english,<br>
=A0 =A0 =A0 =A0 =A0 =A0&quot;Jim&quot; =3D&gt; 94,<br>
=A0 =A0 =A0 =A0 =A0 =A0&quot;Billy&quot; =3D&gt; 58<br>
=A0 =A0 =A0 =A0 =A0}<br>
<br>
=A0 =A0{ &quot;subject&quot; =3D&gt; math,<br>
=A0 =A0 =A0 =A0 =A0 =A0&quot;Jim&quot; =3D&gt; 90,<br>
=A0 =A0 =A0 =A0 =A0 =A0&quot;Billy&quot; =3D&gt; 80<br>
=A0 =A0 =A0 =A0 =A0}<br>
<br>
=A0 =A0 { =A0&quot;subject&quot; =3D&gt; science,<br>
=A0 =A0 =A0 =A0 =A0 =A0&quot;Jim&quot; =3D&gt; 99,<br>
=A0 =A0 =A0 =A0 =A0 =A0&quot;Billy&quot; =3D&gt; 58<br>
=A0 =A0 =A0 =A0 =A0}<br>
<br>
}<br>
<br>
now i want to make an array or output like this<br>
<br>
94,90,99<br>
58,80,58<br>
<br>
<br>
i am looking for some help in google but no luck<br>
<span class=3D"HOEnZb"><font color=3D"#888888"><br>
Robert<br>
<br>
--<br>
Posted via <a href=3D"http://www.ruby-forum.com/" target=3D"_blank">http://=
www.ruby-forum.com/</a>.<br>
<br>
</font></span></blockquote></div><br><br clear=3D"all"><div><br></div>-- <b=
r>Pedro Henrique de Souza Medeiros<br>----------------------------------<br=
>Cel: +55 (61) 9197-0993<br>Email: <a href=3D"mailto:pedrosnk@gmail.com" ta=
rget=3D"_blank">pedrosnk@gmail.com</a><div>
<br></div><div><p><span><span style=3D"font-size:10.0pt;color:#632423;backg=
round:white">Beautiful</span></span><span><span style=3D"font-size:10.0pt;c=
olor:gray;background:white"> is
better than ugly,</span></span><span style=3D"font-size:10.0pt;color:gray;b=
ackground:white"><br>
</span><span><span style=3D"font-size:10.0pt;color:#632423;background:white=
">Explicit</span></span><span><span style=3D"font-size:10.0pt;color:gray;ba=
ckground:white"> is better than implicit,</span></span><span style=3D"font-=
size:10.0pt;color:gray;background:white"><br>

</span><span><span style=3D"font-size:10.0pt;color:#632423;background:white=
">Simple</span></span><span><span style=3D"font-size:10.0pt;color:gray;back=
ground:white"> is better than complex,</span></span><span style=3D"font-siz=
e:10.0pt;color:gray;background:white"><br>

</span><span><span style=3D"font-size:10.0pt;color:#632423;background:white=
">Complex</span></span><span><span style=3D"font-size:10.0pt;color:gray;bac=
kground:white"> is better than complicated.</span></span><span style=3D"fon=
t-size:10.0pt;color:black;background:white"><br>

<br>
</span><span><span style=3D"font-size:10.0pt;color:gray;background:white">T=
he Zen of Python, by</span></span><span><span style=3D"font-size:10.0pt;col=
or:black;background:white"> </span></span><span><span style=3D"font-size:10=
.0pt;color:#943634;background:white">Tim Peters</span></span></p>
</div><br>
</div>

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