What does Connect.js methodOverride do?

问题

The Connect.js very terse documentation says methodOverride

Provides faux HTTP method support.

What does that mean? The obvious Google search is less than helpful. Why is methodOverride useful?

回答1:

• If you want to simulate DELETE and PUT, methodOverride is for that.
• If you pass in the _method post parameter set to 'delete' or 'put', then you can use app.delete and app.put in Express instead of using app.post all the time (thus more descriptive, verbose):

Backend:

// the app
app.put('/users/:id', function (req, res, next) {
  // edit your user here
});

Client logic:

// client side must be..
<form> ...
  <input type="hidden" name="_method" value="put" />
</form>

来源：https://stackoverflow.com/questions/8378338/what-does-connect-js-methodoverride-do