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hatappi/ruby 文字列結合比較テスト

Created November 10, 2015 03:57
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ruby 文字列結合比較テスト
loop_num = 100000
start_time = Time.now
str1 = ''
(1..loop_num).each do |_n|
str1 += 'a'
end
p "+=で#{loop_num}回結合するのにかかった時間は#{Time.now - start_time}秒"
start_time = Time.now
str2 = ''
(1..loop_num).each do |_n|
str2 << 'b'
end
p "<<で#{loop_num}回結合するのにかかった時間は#{Time.now - start_time}秒"
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