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

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

// Thank's IE8 for his funny defineProperty
module.exports = !require('./_fails')(function () {
  return Object.defineProperty({}, 'a', { get: function () { return 7; } }).a != 7;
});