text: var hello = function (name) {
      return "Hello " + name;
  };
  function add(num1, num2) {
      return num1 + num2;
  }
  function calculator() {
      function subtract(num1, num2) {
          return num1 - num2;
      }
      return subtract;
  }
  function display(id, name, role) {
      if (role === void 0) { role = "Normal"; }
      console.log("Id", id);
      console.log("Name", name);
      //if(role!=undefined){
      console.log("Role", role);
      // }
  }
  console.log(hello("Bharath"));
  //console.log(hello("Bharath"));
  //console.log("Sum is: "+add(10,20));
  //display(1,"Bharath","Admin");
  //console.log(calculator()(20,5));
  