Whether to Use Tomcat or express for Angular project
<p>I am working on one application which has rest services and these rest services are running on tomcat server.
I have one more tomcat running which has only UI part.I have built this UI in Angular. I am creating a war out of these Angular related files and deploying in this tomcat, which is accessing other tomcat's rest services.</p>

<p>I have two options of running my UI code, I can either use tomcat or use express js, but I am not sure which to use.
As I am comfortable with tomcat, so I am using tomcat only but if using express on node platform is more beneficial then I should be using that.
Could anybody please explain the pros and cons of using express js over tomcat for my UI project.</p>