const obj = { foo: 1 };
obj.bar = 2;
function mystery(...params) {
return params;
}
let a = mystery(1,23,4);
let a = 12, b = 3;
[a, b] = [b, a];
let point = [1,3], segment = [point,[5,5]], triangle = [...segment,[1,8]];
class Slave { // ... };
const slave = Slave();