如何使用javascript / node js从数据库动态将图片加载到网页上

I am working on a web app, and I am creating a user profile page in which I want to load in user information, and display a profile picture. I am using node/express/jade. I have a javascript file that handles what jade view should be loaded when a tab is clicked. For example, if the profile Page tab is clicked, I use jquery post methods to load up data to the user. I want to load up pictures, but I am not sure exactly how the html/or jade form would look like for this, or how I would post the picture from a database using my javascript file. I am working on a web app, and I am creating a