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Vimで行末の余分なスペースを取り除く

Rails Best Practicesでコードをチェックすると、remove trailing whitespaceなんて言われたりしますよね。

行末に無駄なスペースがあると怒られてしまうようです。
手動でやるのはなかなか面倒くさいので、自動でやるように設定してしまいましょう。

.vimrc に以下の一行を追記しましょう。

autocmd BufWritePre * :%s/\s\+$//ge

こうすると、保存時に行末の空白を自動で削除してくれます。

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46
Help us understand the problem. What are the problem?