如何添加和删除一个类来隐藏和显示表格行？

In my current situation in my Ruby on Rails application, I am trying to make a drop-down function on each table tow to show advanced details for a server that comes from a database. My through process is to make the hidden row default to display: none; then add a viewing class when it is clicked to view it, then hide it when it is clicked again. Here is my javascript:In my current situation in my Ruby on Rails app