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NodeJS + ExpressJS: Strip out port from req.headers.host

/ Published in: JavaScript
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I doubt anyone will ever need this but just in case. I had a scenario where I needed to deliver the hostname (without the port) through an .ejs variable. The hostname comes from the request header so that's easy to find and I simply used a .match with a ternary conditional to keep things clean.

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  1. var express     = require("express"),
  2. app         = express.createServer();
  3.  
  4. app.get("/", function( req, res ){
  5.   //Strip out port number
  6.   var hostname = ( req.headers.host.match(/:/g) ) ? req.headers.host.slice( 0, req.headers.host.indexOf(":") ) : req.headers.host
  7.  
  8.   res.render( "index.ejs", {
  9.     layout:   false,
  10.     hostname: "http://" + hostname
  11.   });
  12.  
  13. });

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