javascript这两个代码段有什么不同？

Question

I'm new to javascript and node. 1st:

app.get('/', function(req, res){
  articleProvider.findAll(function(error, docs){
      res.render('index.jade', { locals: {
        title: 'Blog',
        articles:docs
        }
      });
  });
});

2nd

app.get('/', function(req, res){
  articleProvider.findAll(function(error, docs){
      res.render('index.jade', {
        title: 'Blog',
        articles:docs
        }
      );
  });
});

1st code is from this tutorial http://howtonode.org/express-mongodb , but doesn't work. 2nd code did work, and i just don't know why? Other parts are exactly same.

Answer 1

In earlier versions of Express you needed to put the vars you wanted to make available to your Jade template in the locals field of that parameter to res.render .

That changed in 3.x so that all the fields of that parameter are available to the rendered template as locals.