confused on objects

Hi All

Im trying to learn to build Pong whilst learning JS at the same time.

I'm learning in pure js with no libraries for frameworks etc as i want to learn the JS first but im a little confused.

in other languages with OOP ive used classes and it may look like this:

class Paddle{
  constructor(x,y,w,h){
    this.x = x;
    this.y = y;
    this.width = w;
    this.height = h;
  }
}

player = new.Paddle(50,100,30,100);

This i understand

and i also understand the "i assume old" way however they created a function.

is this similar to a constructor? 

to me it looks like the function is creating an object called p of which its properties come from the create function.. so im wondering.. do the inital x y width and height need to be there?

let Paddle = {
  x:0,
  y:0,
  width:0,
  height:0,

  create: function(x, y, width, height) {
        var p = Object.create(this);
            p._x = x;
            p._y = y;
            p._width = width;
            p._height = height;
        return p;
    }
}

var playerPaddle = paddle.create(0, 0, 10, 100);

could it be like this?

let Paddle = {

  create: function(x, y, width, height) {
        var p = Object.create(this);
            p._x = x;
            p._y = y;
            p._width = width;
            p._height = height;
        return p;
    }
}

var playerPaddle = paddle.create(0, 0, 10, 100);

OR

is this line,  var p = Object.create(this);, giving the properties to the "p" ??