From: Peter Hickman <peterhickman386@...>
Date: 2013-07-19T23:49:33+09:00
Subject: Re: need to help to get data from bellow syntax

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The [ and ] indicate a list. So we need to loop over the list

bellow_syntax = [{:name=>"value1"}, {:name=>"Value2"}]

bellow_syntax.each do |item|
  p item
end

This prints out the items in the list as shown bellow

{:name=>"value1"}
{:name=>"Value2"}

The { and } indicate a hash. We want the value of the :name key so we do
this:

bellow_syntax.each do |item|
  p item[:name]
end

and this prints out

"value1"
"Value2"

In a more Rubyish way we can do this

p bellow_syntax.map{|x| x[:name]}

which returns a list of the values

["value1", "Value2"]

If you don't know what list and hashes are, and the fact that you asked
this question means that you don't, please follow the various tutorials
that get mentioned in this list on an almost daily basis. Once you have
done that the final answer I gave you will make sense.

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<div dir=3D"ltr">The [ and ] indicate a list. So we need to loop over the l=
ist<div><br></div><div><div><div>bellow_syntax =3D [{:name=3D&gt;&quot;valu=
e1&quot;}, {:name=3D&gt;&quot;Value2&quot;}]</div><div><br></div><div>bello=
w_syntax.each do |item|</div>
<div>=A0 p item</div><div>end</div></div></div><div><br></div><div>This pri=
nts out the items in the list as shown bellow</div><div><br></div><div><div=
>{:name=3D&gt;&quot;value1&quot;}</div><div>{:name=3D&gt;&quot;Value2&quot;=
}</div>
</div><div><br></div><div>The { and } indicate a hash. We want the value of=
 the :name key so we do this:</div><div><br></div><div><div>bellow_syntax.e=
ach do |item|</div><div>=A0 p item[:name]</div><div>end</div></div><div><br=
>
</div><div>and this prints out</div><div><br></div><div><div>&quot;value1&q=
uot;</div><div>&quot;Value2&quot;</div></div><div><br></div><div>In a more =
Rubyish way we can do this</div><div><br></div><div>p bellow_syntax.map{|x|=
 x[:name]}</div>
<div><br></div><div>which returns a list of the values</div><div><br></div>=
<div>[&quot;value1&quot;, &quot;Value2&quot;]</div><div><br></div><div>If y=
ou don&#39;t know what list and hashes are, and the fact that you asked thi=
s question means that you don&#39;t, please follow the various tutorials th=
at get mentioned in this list on an almost daily basis. Once you have done =
that the final answer I gave you will make sense.</div>
<div><br></div><div><br></div>







</div>

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