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AS guide: documents Hash#with_indifferent_access

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commit 8d0fa4054e1564a6592416e854742661406c5c28 1 parent ebe1775
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  1. +8 −0 railties/guides/source/active_support_overview.textile
8 railties/guides/source/active_support_overview.textile
@@ -1190,6 +1190,14 @@ params[:account] = params[:account].except(:plan_id) unless admin?
There's also the bang variant +except!+ that removes keys in the very receiver.
+h4. Indifferent Access
+The method +with_indifferent_access+ returns an +ActiveSupport::HashWithIndifferentAccess+ out of its receiver:
+{:a => 1}.with_indifferent_access["a"] # => 1
h3. Extensions to +Range+
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