Looping through Object Properties

ObjectPropertyLoop.js

function OnSubmit(e){
  
  var NewSubmission = {};
  
  var Properties = ["Timestamp","Favourite Colour","Explanation"];
  
  var i = 0;
    for(i = 0; i < Properties.length; i++){
    NewSubmission[Properties[i]] = e.values[i];
  }
  

 MailApp.sendEmail("gassnippets@gmail.com", "Your form was submitted!", 
                   
                   "Hey you!" + 
                   "\n\n Someone submitted your form. Here's what they had to say:" +
                   "\n\n Favourite Colour: " + NewSubmission["Favourite Colour"] +
                   "\n Explanation: " + NewSubmission["Explanation"])
  
}