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@tamugramerin弱々エンジニア会

Railsでカンマ区切り+小数点以下表示で数値を出力する方法

Last updated at Posted at 2020-01-10

目的

整数部をカンマ区切りで表示し、小数点以下を表示したい

コード

number_with_precision(123456789, precision: 2, delimiter: ',')
#=> "123,456,789.00"

参考リンク

ruby-on-rails — 大きな数字にカンマを追加するためのRailsトリックはありますか？
[ActionView::Helpers::NumberHelper]
(https://api.rubyonrails.org/classes/ActionView/Helpers/NumberHelper.html#method-i-number_with_precision)

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