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 2017 Handling Errors in Node Handling Parsing Errors with try and catch

Corey Hayden
Corey Hayden
11,717 Points
Posted by Corey Hayden
Corey Hayden
11,717 Points

Why no argument for 'printError' in line 40, in https.get? >> request.on('error', printError);

The callback function we've written to handle errors is :

function printError (error) { console.error(error.message); }

the ' error' argument is passed to this function at the other times it is called, but not in the request.on('error') callback. Why is this?

1 Answer

Artur Veselovski
Artur Veselovski
6,138 Points
Artur Veselovski
Artur Veselovski
6,138 Points

I think it's because it takes one argument and passes one argument, so no need. Like with:

users.forEach(getProfile);

instead of

users.forEach(username => {
    getProfile(username);
});