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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

jason limmm
jason limmm
8,009 Points
Posted by jason limmm
jason limmm
8,009 Points

i need help

there is a problem with my code that i'm not sure how to explain... this is from a challenge and my message should refer to the challenge hoppefully

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) {
  content=content.replace("%"+values+"%");
  return content;
}


module.exports.merge = merge;

1 Answer

Steven Parker
Steven Parker
231,275 Points
Steven Parker
Steven Parker
231,275 Points

The instructions tell you that "The second parameter should be an object with values to be inserted…", so it can't be used as a string. And you can see from the sample index.js code that the object will have properties that identify where the value will be substituted.

If you create a loop that will iterate through all the properties of the object, you can use the property names to create the strings to identify what to replace with the associated value.

Also, don't forget that the replace method takes two arguments, the pattern and the string to replace it with.

Finally, if you want your method to handle cases where a token is used more than once, you could use replaceAll instead.