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

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

module.exports = function (exec) {
  try {
    return { e: false, v: exec() };
  } catch (e) {
    return { e: true, v: e };
  }
};