How to add JS frameworks to use in the backend of SailsJS?

Question

I want to add Underscore JS to be used in the BackEnd so I can call _. functions from my Controllers. How do I do that?

Answer 1

First, you have to install the library you want to add with npm install --save <libraryName>.

Then, on top of your controller, before module.exports = ..., require this library:

var libraryName = require('<libraryName>');

That's it.

In case of Underscore.js it will be:

npm install --save underscore

then

var _ = require('underscore');

on top of your controller. After that you'll be able to use _.-functions anywhere in this file.

UPDATE

The answer by InternalFX makes perfect sense too. Sails.js indeed globalizes Lodash via _, and pretty much all the functionality of Underscore Lodash implements too, so in this case, that's right, you don't even have to do anything.

Answer 2

You don't need to do anything.

Sails loads LoDash by default.

It is already assigned to "_".

So unless you need some very specific incompatibility between LoDash and underscore.... of which i don't know of.....your done.