const obj = { foo: 1 };
obj.bar = 2;
let name = 'Harry';
let occupation = 'wizard';
console.log(`Hi! My name is ${name}. I'm a ${occupation}.`);
(function() {
let f = this ? class g { } : class h { };
return [ typeof f, typeof h ];
})();
let a = 12, b = 3;
[a, b] = [b, a];
const [a, , b] = [1, 2, 3];
console.log(a, b);