babel-preset-test-bundled-dependencies/node_modules/core-js/modules/_property-desc.js

Allow custom config for create-react-app without ejecting

module.exports = function(bitmap, value){
  return {
    enumerable  : !(bitmap & 1),
    configurable: !(bitmap & 2),
    writable    : !(bitmap & 4),
    value       : value
  };
};