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

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

var isObject = require('./_is-object');
module.exports = function (it) {
  if (!isObject(it)) throw TypeError(it + ' is not an object!');
  return it;
};