running a function in a function javascript

function runFunction() {
  myFunction();
}

function myFunction() {
  alert("runFunction made me run");
}

runFunction();

// Define your function
function sayHello(msg){
	console.log("Hello, " + msg);
}

// Call it
sayHello("Norris");

// outputs:
// Hello, Norris

var person = {

  firstName:"John",

  lastName: "Doe",

    fullName: function () {

    return this.firstName + " " + this.lastName;

    }

}

	person.fullName();   // Will return "John Doe"