Google Apps Script Date Input handler

GASDateInputHandler.js

// Create string version of date entered to be read by humans
NewSubmission["Delivery Date"] = NewSubmission["Day"] + "-" + NewSubmission["Month"] + "-" + NewSubmission["Year"];  
    
 
// create Javascript Date instance from date string
var OrderFor = new Date(NewSubmission["Month"] + " " + NewSubmission["Day"] + ", " + NewSubmission["Year"]); 

// These properties aren't needed as we have NewSubmission["Delivery Date"] which is DD-MM-YYYY
delete NewSubmission["Day"];
delete NewSubmission["Month"];
delete NewSubmission["Year"];