only-changed-jest-watch-plugin/example/node_modules/core-js/modules/_defined.js

Jest watch plugin for running either only the modified test (for TDD), or tests of dependant modules

// 7.2.1 RequireObjectCoercible(argument)
module.exports = function (it) {
  if (it == undefined) throw TypeError("Can't call method on  " + it);
  return it;
};