What is the difference between setting a property on app.locals and calling app.set()?

Question

I\'m in the process of learning Express - and thinking of the best place to save config style data. Options available are either in app.locals or app.set (settings)... so:

Answer 1

The express api reference says :

By default Express exposes only a single app-level local variable, settings.

and either way is ok:

app.locals.title = 'My App';

app.set('title', 'My App');
// use settings.title in a view