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

Shaune Oosthuizen
Shaune Oosthuizen
127 Points

Node.js replace issue

Hi All,

I was wondering if anyone could assist me with this challenge. I believe There is something wrong when I try to 'replace' the placeholder key value with the first_name value going off of this error message 'Object [object Object] has no method 'replace''

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, {encoding: "utf8"});

//mergedContent === "Hi Janet! Thanks for completing this code challenge :)";
function merge(content, values) {
  for (var key in content) {
    //replace all {{key}} with the value from the values object
    values = values.replace("%" + key + "%", content[key]);
  return values;

module.exports.merge = merge;
Chris Adamson
Chris Adamson
132,143 Points

Your looping on the wrong parameter, values contains the dictionary/map and the assignment statement is backwards, i.e. you want to replace the value of contents (not values), and pull the value from the dictionary/map (values not content),

1 Answer

You were a bit close to resolve quizz:

function merge(content, values) {
  for(key in values) {
    content = content.replace("%" + key + "%", values[key]);
  return content;

module.exports.merge = merge;

Try to find out why it is.