for loop: outputs property name and value

forloop.js

var nyc = {
    fullName: "New York City",
    mayor: "Michael Bloomberg",
    population: 8000000,
    boroughs: 5
};


//This loop will output ALL the properties of this object
for(var i in nyc){
    //console.log(i); //Notice we are printing out PROPERTIES not the properties VALUES
  console.log(i + ": " +nyc[i]); //This will print out all the objects VALUES
}