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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

hector alvarado
hector alvarado
15,784 Points

I didn't understand this challange, any help?

Didn't understand the following instruction, im kinda lost in how to follow this:

"Complete the implementation of the merge method in utilities.js file. You should be able to pass in a string with placeholders with percent signs (%) surrounding them. The second parameter should be an object with values to be inserted in to the placeholders. Look at index.js to see how it should work."

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) {

  return content;
}


module.exports.merge = merge;

1 Answer

Mark Warren
Mark Warren
19,249 Points

It's pretty similar to the function in renderer.js, except in this case the value you're replacing is wrapped with %..% instead of {{...}}

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

module.exports.merge = merge;