title: How to use partials in Express.js layout?
body: <p>I have a layout.ejs file that contains my site's basic boilerplate HTML markup: doctype declaration, head, body, footer, the basics...</p>
  
  <p>How would I go about placing the navigation in a separate partial file and including it into this layout? Is there a particular require() or include() function for doing this?</p>
  
  <p>I am using EJS view engine.</p>