//// [classOrder2.ts] class A extends B { foo() { this.bar(); } } class B { bar() { } } var a = new A(); a.foo(); //// [classOrder2.js] var __extends = (this && this.__extends) || (function () { var extendStatics = function (d, b) { extendStatics = Object.setPrototypeOf || ({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) || function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; }; return extendStatics(d, b); }; return function (d, b) { if (typeof b !== "function" && b !== null) throw new TypeError("Class extends value " + String(b) + " is not a constructor or null"); extendStatics(d, b); function __() { this.constructor = d; } d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __()); }; })(); var A = /** @class */ (function (_super) { __extends(A, _super); function A() { return _super !== null && _super.apply(this, arguments) || this; } A.prototype.foo = function () { this.bar(); }; return A; }(B)); var B = /** @class */ (function () { function B() { } B.prototype.bar = function () { }; return B; }()); var a = new A(); a.foo();