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 Build a Simple Dynamic Site with Node.js Creating a Basic Template Engine in Node.js A Simple Merge Utility

Keytron Brown
Keytron Brown
15,828 Points

Backend trouble...

I am not understanding anything about this backend stuff. Can I just get an answer to this question please.

index.js
var utilities = require("./utilities");

var mailValues = {};

mailValues.first_name = "Janet";

var emailTemplate = "Hi %first_name%! Thanks for completing this code challenge :)";

var mergedContent = utilities.merge(emailTemplate, mailValues);

//mergedContent === "Hi Janet! Thanks for completing this code challenge :)";
utilities.js
function merge(content, values) {
  for(var key in values) {
     content = content.replace("{{" + key + "}}", values[key]);
}
  return content;
}


module.exports.merge = merge;

1 Answer

Steven Parker
Steven Parker
229,644 Points

You're pretty close, but you may have misread the instructions. They say that "You should be able to pass in a string with placeholders with percent signs (%) surrounding them."

But your replacement code is looking for placeholders with double braces ({{ }}) surrounding them instead.