Hi,

I can't quite get my head around this. I understand that you loop through the proterties and you need to reference to the constructor's arguments.

But why is that? Why wouldn't it work to assign the property-values as proterties to the object?

How does the contructor function receive the passed property arguments from the wrapper function?

function makeClass(...properties) {

  //WRONG: referenecing wrapper arguments only
  
  return function() {
    properties.forEach((prop, i) => {
      return this[prop] = prop
    })
  }
  
  //RIGHT solution:
  
  return function() {
    properties.forEach((prop, i) => {
      return this[prop] = arguments[i]
    })
  }
}

And how do you add syntax-highlighting to your code blocks in your comments?

In this case the regular expression will ignore the underscore in the return value, since it cannot be paired with another character.