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Patch #29305

closed

Use Hash#each_key instead of Hash#keys.each

Added by Go MAEDA over 6 years ago. Updated about 6 years ago.

Status:
Closed
Priority:
Normal
Assignee:
Go MAEDA
Category:
Performance
Target version:
4.0.0
Start date:
Due date:
% Done:

0%

Estimated time:

Description

Hash#each_key is faster than Hash#keys.each because it does not allocate a new array when iterating keys. See https://github.com/JuanitoFatas/fast-ruby#hasheach_key-instead-of-hashkeyseach-code for details.

Files

replace-each-with-each_key.diff (2.68 KB) replace-each-with-each_key.diff Go MAEDA, 2018-07-31 23:53
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