Untitled

<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width">
  <title>JS Bin</title>
</head>
<body>

<script id="jsbin-javascript">
// var person = {
//   firstName: "John",
//   lastName: "Snow",
//   getfullName: function(){
//     console.log(this.firstName + " " + this.lastName);
//   }
// }

var person = {
  firstName: "John",
  lastName: "Snow",
  getfullName: function(){
    //var self = this;
    //var fn = function(){

    var fn = () => {
    console.log(this.firstName + " " + this.lastName);
    }


    return fn();

    //}.bind(this);


  }
}

person.getfullName();
</script>


<script id="jsbin-source-javascript" type="text/javascript">// var person = {
//   firstName: "John",
//   lastName: "Snow",
//   getfullName: function(){
//     console.log(this.firstName + " " + this.lastName);
//   }
// }

var person = {
  firstName: "John",
  lastName: "Snow",
  getfullName: function(){
    //var self = this;
    //var fn = function(){

    var fn = () => {
    console.log(this.firstName + " " + this.lastName);
    }


    return fn();

    //}.bind(this);


  }
}

person.getfullName();</script></body>
</html>