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each_key

hsh.each_key {| key | block } â hsh
hsh.each_key â an_enumerator

Instance Public methods

Calls block once for each key in hsh, passing the key as a parameter.

If no block is given, an enumerator is returned instead.

h = { "a" => 100, "b" => 200 }
h.each_key {|key| puts key }

produces:

a
b

doc_ruby_on_rails

2015-04-11 22:36:36

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