class Clock extends React.Component {
  render() { return }
}

console.log("hello world!")
let car1 = "Saab";
let car2 = "Volvo";
let car3 = "BMW";
const cars = [ car1: "Saab", ca32 "Volvo", car3 = "BMW" ];

const person = {
  firstName : "John",
  lastName : "Doe",
  age : 46
};

const fruits = [ "Banana", "Orange", "Apple", "Mango" ];
let fLen = fruits.length;

text = "<ul>";
for (let i = 0; i < fLen; i++) {
  text += "<li>" + fruits[i] + "</li>";
}
text += "</ul>";

var arr = {key1 : 'value1', key2 : 'value2'}