Pastable version of Convert deep hash into a string of keys.

<pre class='prettyprint' language='ruby'>e.g

hsh = {&quot;abba&quot;=&gt;&quot;papa&quot;,&quot;ddd&quot;=&gt;{&quot;gole&quot;=&gt;&quot;cfr&quot;,&quot;say&quot;=&gt;&quot;111&quot;},&quot;second&quot;=&gt;{&quot;again&quot;=&gt;{&quot;last&quot;=&gt;&quot;kkkkk&quot;} }}

o/p should be =&gt;

[&quot;abba&quot;, &quot;ddd.gole&quot;, &quot;ddd.say&quot;, &quot;second.again.last&quot;]

#===============================================================================
following is my code which is half working.

def convert_deep_hash_into_string_of_keys(cast,str)
  str ||=[]
  a = &quot;&quot;
   cast.each do |k,v|
      if v.is_a?(Hash)
        a &lt;&lt; k
        convert_deep_hash_into_string_of_keys(v,a)
      else
        a &lt;&lt; k
      end
      str &lt;&lt; &quot;.#{a}&quot;
      a = &quot;&quot;
    end
   str.each{|s| s.gsub!(/^\./,&quot;&quot;)} 
   return  str.reverse
end
 
 hsh = {&quot;abba&quot;=&gt;&quot;papa&quot;,&quot;ddd&quot;=&gt;{&quot;gole&quot;=&gt;&quot;cfr&quot;,&quot;say&quot;=&gt;&quot;111&quot;},&quot;second&quot;=&gt;{&quot;again&quot;=&gt;{&quot;last&quot;=&gt;&quot;kkkkk&quot;} }}

convert_deep_hash_into_string_of_keys(hsh,[])

o/p of above code =&gt; [&quot;abba&quot;, &quot;ddd.say.gole&quot;, &quot;second.again.last&quot;]</pre>
<a href="http://www.refactormycode.com/codes/969-convert-deep-hash-into-a-string-of-keys" style="color:#fff" title="As seen on RefactorMyCode.com"><img alt="Small_logo" src="http://www.refactormycode.com/images/small_logo.gif" style="border:0" /></a>

Refactor :my => 'code'

Recent

Popular

Pastable version of Convert deep hash into a string of keys.