lib/index.js
function executeJS (script) {
  if (!script) return;

  try {
    var ret = vm.runInThisContext(script, '[eval]');
    if ('undefined' != typeof ret) {
      console.log(ret);
    }
  } catch (err) {
    if (!(err instanceof Error)) {
      err = new Error(err);
    }
    console.log(err.stack.split('\n')[0]);
    process.exit(1);
  }
}
function executeJS (script) {
  if (!script) return;

  try {
    var ret = vm.runInThisContext(script, '[eval]');
    if ('undefined' != typeof ret) {
      console.log(ret);
    }
  } catch (err) {
    if (!(err instanceof Error)) {
      err = new Error(err);
    }
    console.log(err.stack.split('\n')[0]);
    process.exit(1);
  }
}
Executes javascript passed by --eval

@param {String} script to evaluate