Welcome to the Treehouse Community

Want to collaborate on code errors? Have bugs you need feedback on? Looking for an extra set of eyes on your latest project? Get support with fellow developers, designers, and programmers of all backgrounds and skill levels here with the Treehouse Community! While you're at it, check out some resources Treehouse students have shared here.

Looking to learn something new?

Treehouse offers a seven day free trial for new students. Get access to thousands of hours of content and join thousands of Treehouse students and alumni in the community today.

Start your free trial

JavaScript Node.js Basics (2014) Building a Command Line Application Handling Errors in Node

Binu Alexander
Binu Alexander
4,081 Points
Posted by Binu Alexander
Binu Alexander
4,081 Points

On a new line use the on method to listen for the error event. Pass in a callback function with one parameter of error.

What am I doing wrong here ?

app.js 
var http = require("http");
var request =
http.get("http://teamtreehouse.com/chalkers.json", function(response){
  console.log(response.statusCode);
}

request.on = ('error', function(res) ) ;

1 Answer

Marcus Parsons
Marcus Parsons
15,719 Points

Hi Binu,

The "on" event handler is a method and so it is set with a pair of parenthesis, not an equal sign. You also need a parameter of error not res in your callback function. This is what that looks like:

request.on('error', function(error) {});
Marcus Parsons
Marcus Parsons
15,719 Points

You're very welcome! :)