将jQuery卸载到自己的文件中

I'm confused on consolidating jQuery into it's own file. I'm able to do what I need with jQuery, but I either put each function in its own .js.erb file, or include it inline in the .html.erb file, wrapped with script tags. If I try to put them all in the same file, I can't get it to work.I'm confused on consolidating jQuery into it's