"use strict"; let Base = function Base() {}; Object.defineProperty(Base.prototype, 0, { value: 0, writable: true, configurable: true }); Object.defineProperty(Base.prototype, 1, { value: 1, writable: true, configurable: true }); let i = 0; const proper = { get prop() { return i++; } }; let Obj = /*#__PURE__*/function (_Base) { babelHelpers.inheritsLoose(Obj, _Base); function Obj() { return _Base.apply(this, arguments) || this; } var _proto = Obj.prototype; _proto.assign = function assign() { var _proper$prop; this[_proper$prop = proper.prop] = _Base.prototype[_proper$prop] + 1; }; _proto.assign2 = function assign2() { var _i; this[_i = i] = _Base.prototype[_i] + 1; }; return Obj; }(Base); const obj = new Obj(); obj.assign(); expect(i).toBe(1); expect(obj[0]).toBe(1); expect(obj[1]).toBe(1); obj.assign2(); expect(i).toBe(1); expect(obj[0]).toBe(1); expect(obj[1]).toBe(2);