Function to implement new keyword

newFunction.js

function newFunction(funcName, args) {
  // Copy the function prototype to object
  let obj = Object.create(funcName.prototype)
  // Call constructor function with supplied arguments, and assign this to newly created object
  funcName.call(obj, args)
  // return newly created object
  return obj
}


// Example
function Workshop(teacher) {
  this.teacher = teacher
}

Workshop.prototype.ask = function ask(question) {
  console.log(this.teacher, question)
}

const workshop = newFunction(Workshop, 'kyle')
workshop.ask('How are you??')