Using app.configure in express

Question

It is optional and remain for legacy reason, according to the doc. In your example, the two piece of codes have no difference at all. http://expressjs.com/api.html#app.configure

Update 2015:

@IlanFrumer points out that app.configure is removed in Express 4.x. If you followed some outdated tutorials and wondering why it didn't work, You should remove app.configure(function(){ ... }. Like this:

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

app.use(...);
app.use(...);

app.get('/', function (req, res) {
    ...
});