function () {
    return new Promise(function (resolve, reject) {
      portfinder.getPort(function (error, port) {
        if (error) {
          reject(error);
        } else {
          resolve(port);
        }
      });
    });
  }
function () {
    return new Promise(function (resolve, reject) {
      portfinder.getPort(function (error, port) {
        if (error) {
          reject(error);
        } else {
          resolve(port);
        }
      });
    });
  }
function ( ) { return new Promise ( function ( resolve , reject ) { portfinder . getPort ( function ( error , port ) { if ( error ) { reject ( error ) ; } else { resolve ( port ) ; } } ) ; } ) ; }
Functional._getOpenPort() -> Object
Functional . _getOpenPort () - > Object