what does the new keyword do javascript code example

Example 1: keyword new js

function Car(make, model, year) {
  this.make = make;
  this.model = model;
  this.year = year;
}
//create a object with three keys, make, model, and year

var myCar = new Car('Eagle', 'Talon TSi', 1993);
// use the new operator to create any number of car objects with this template object Car above

Example 2: new keyword in js

**Important Points** 

1.It creates a new object. The type of this object is object.
2.It sets this new object's internal, inaccessible, [[prototype]] (i.e. __proto__) property to be the constructor function's external, accessible, prototype object (every function object automatically has a prototype property).
3.It makes the this variable point to the newly created object.
4.It executes the constructor function, using the newly created object whenever this is mentioned.
5.It returns the newly created object, unless the constructor function returns a non-null object reference. In this case, that object reference is returned instead.
Note: constructor function refers to the function after the new keyword, as in

new ConstructorFunction(arg1, arg2)