What are different between next(error) and throw new Error in Express framework?-CodePudding

Can someone explain to me about the different between two ways exception error handling in code Express JS below:

const express = require('express');
const app = express();

app.get('/test', (req, res, next) => {

  // the first way:
  throw new Error('my error message');

  // the second way:
  next(new Error('my error message'));

});

app.use((err, req, res, next) => {
  res.status(err.status || 500).send(err.message || 'Internal Server Error');
});

app.listen(3000, () => console.log('Welcome to ExpressJS'));

It returns the same result handled by error middleware but what is the difference here?

CodePudding user response：

Nothing, based on the source code.

  try {
    fn(req, res, next);
  } catch (err) {
    next(err);
  }