new-keyword.txt

// construction pattern

function abc(a,b){
	this.a=a;
	this.b=b;
}


var obj = new abc('123','456')

obj // {a:'123', b":'456'}


similarly we can achieve like this:
var obj1 = {}
abc.call(obj1, 'xyz', 'zzz');
obj1 // {a:'xyz', b:'zzz'}


--------------------------------------------------
// constructor pattern and closure example:-

function Device(kind) {
  this.kind =  kind;
  this.printKind = function () {
    console.log(kind);
    console.log(this.kind);
  }
}
var product = new Device("music player");
product.kind = "radio";
product.printKind();

// music player
// radio