1st method
res.render('index',{people:people});
2nd method
res.locals.people = people;
res.render('index');
I saw there's 2 ways to pass variable to view, what's the different btw above method?
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1 Answer
I think they are the same for pass variable to render template, but there is a difference.
You can use res.locals to pass variable from serval middlewares.
res.locals
An object that contains response local variables scoped to the request, and therefore available only to the view(s) rendered during that request / response cycle (if any). Otherwise, this property is identical to app.locals.
This property is useful for exposing request-level information such as the request path name, authenticated user, user settings, and so on.
app.use(function(req, res, next){
res.locals.user = req.user;
res.locals.authenticated = ! req.user.anonymous;
next();
});
From this code, you pass req.user to next middleware.
2 Comments
Jennifer
so it's better to use res.locals? because it's more flexible?
BlackMamba
I think if you want to render the template, i think
res.render('index',{people:people}); is a better way.