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Add sample code of ENV.each #1531

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Jan 8, 2020
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Add sample code of ENV.each #1531

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8 changes: 8 additions & 0 deletions refm/api/src/_builtin/ENV
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Original file line number Diff line number Diff line change
Expand Up @@ -132,6 +132,14 @@ reject! は要素に変化がなければ nil を返します。
--- each_pair {|key, value| ... } -> self
key と value を引数としてブロックを評価します。

#@samplecode
ENV['FOO'] = 'bar'
ENV.each do |key, value|
p "value is #{value}" if key == 'FOO' # => "value is bar"
end
# => ENV
#@end

#@since 1.9.1
--- each_key -> Enumerator
#@else
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