语法错误，意外的keyword_class，期待keyword_do或'{'或'（''

Question

我正在

$ syntax error, unexpected keyword_class, expecting keyword_do or '{' or '('

在这一行

$ %li = link_to 'Features', features_path class => ('active' if params[:action] == 'features')%li

Answer 1

%li = link_to 'Features', features_path, :class => ('active' if params[:action] == 'features')

• 删除尾随%li。
• 我也把班级变成了一个符号，并用逗号括起来。

修改

要将类添加到%li标记，请尝试以下操作：

%li{:class => (params[:action] == 'features' ? 'active' : nil)}
  = link_to 'Features', features_path