/ Rails flash messages styled for Bootstrap 4.0
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flash.each do |name, msg|
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if msg.is_a?(String) div class=“alert alert-#{name.to_s == 'notice' ? 'success' : 'danger'}”
button.close[type="button" data-dismiss="alert" aria-hidden="true"] × = content_tag :div, msg, :id => "flash_#{name}"
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