Question

I want to use underscore function in jade template, like this

p= _.keys(user)

Not for client javascript, for in redering.

Through I did require ‘underscore’ in app.js, did not get along well.
Of course it work properly in app.js.

ReferenceError: xxxxxxx _ is not defined

this is template error message.
any idea?

thanks

Answer 1

If you are using Express.js (presumably you would be since you’re using Jade) you can add underscore as a view helper.

app.helpers({
    _: require("underscore")
});

UPDATE Using Express 3+, the above will no longer work, use app.locals instead:

app.locals._ = require("underscore");