lib/middleware/typed-params.js
function _param(req, key, _default) {
  var src = req.params[key];
  if (src === undefined) {
    src = req.body[key];
  }
  if (src === undefined) {
    src = req.query[key];
  }
  if (src === undefined) {
    src = _default;
  }
  return src;
}
function _param(req, key, _default) {
  var src = req.params[key];
  if (src === undefined) {
    src = req.body[key];
  }
  if (src === undefined) {
    src = req.query[key];
  }
  if (src === undefined) {
    src = _default;
  }
  return src;
}
function _param ( req , key , _default ) { var src = req . params [ key ] ; if ( src === undefined ) { src = req . body [ key ] ; } if ( src === undefined ) { src = req . query [ key ] ; } if ( src === undefined ) { src = _default ; } return src ; }
Because req.param() was deprecated.
Because req . param () was deprecated .