var _ref = [1, 2];
let a = _ref[0];
let b = _ref[1];

var _ref2 = [3, 4];
let c = _ref2[0];
let d = _ref2[1];

var _ref3 = {
  e: 5,
  f: 6
};
let e = _ref3.e;
let f = _ref3.f;

var _ref4 = {
  a: 7,
  b: 8
};
let g = _ref4.a;
let h = _ref4.b;