webpack-overhead.js

(function(modules) {
  var installedModules = {};

  function WEBPACK_REQUIRE_METHOD(id) {
    // if module was already imported, return its exports
    if (installedModules[id]) {
      return installedModules[id].exports;
    }

     // create module object and cache it
     var module = installedModules[id] = {
       id: id,
       exports: {}
     };

     // call module’s function wrapper
     modules[id](module, module.exports, WEBPACK_REQUIRE_METHOD);
  }

  // kick off by calling entry module
  WEBPACK_REQUIRE_METHOD(0);
})([
  /* 0 module */
  function() {},
  /* 1 module */
  function() {},
  /* n module */
  function() {}
]);