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RuboCop | Style/NumericLiterals

Last updated at Posted at 2014-07-14

RuboCop | Style/NumericLiterals

概要

RuboCopの「Style/NumericLiterals」警告について。

数値リテラルを3ケタ区切りで _ で区切っているかどうかチェックする。
デフォルトは5ケタ以上の場合にチェックする。

NumericLiterals

各設定値での検証結果をまとめます。

検証プログラム

numeric_literals.rb
print 1234
print 12345
print 123456

実行結果 デフォルト の場合

.rubocop.yml
NumericLiterals:
  MinDigits: 5
$ rubocop numeric_literals.rb
Inspecting 1 file
C

Offenses:

numeric_literals.rb:2:7: C: Separate every 3 digits in the integer portion of a number with underscores(_).
print 12345
      ^^^^^
numeric_literals.rb:3:7: C: Separate every 3 digits in the integer portion of a number with underscores(_).
print 123456
      ^^^^^^

1 file inspected, 2 offenses detected

実行結果 6桁 に設定します

.rubocop.yml
NumericLiterals:
  MinDigits: 6
$ rubocop numeric_literals.rb
Inspecting 1 file
C

Offenses:

numeric_literals.rb:3:7: C: Separate every 3 digits in the integer portion of a number with underscores(_).
print 123456
      ^^^^^^

1 file inspected, 1 offense detected

補足

この警告は rubocop -a で修正可能です。

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