Using underscore.js with rails 3

Question

I've been looking at underscore.js and wanted to add it to my rails project. I'm already using jQuery. Is there a best practice when it comes to using these two libraries together? Also, how do you deal with jQuery objects with underscore? Do you use jquery to select a bunch of elements, then run them through underscore?

Chris Wong · Accepted Answer · 2012-06-14 20:57:51Z

1

You can either manually include the underscore js file in your assets, or you can use this gem:

https://github.com/rweng/underscore-rails

Underscore works well with Javascript collections and objects of any kind, so the functions do work well with jQuery objects.

answered Jun 14, 2012 at 20:57

Chris Wong

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Paal Øye-Strømme · Accepted Answer · 2012-06-14 21:07:24Z

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I suggest you to use it without underscore-rails gem. It is very useless.

It produce nothing but new dependency for the project.

There is no reason to scare using the underscore.js directly.

answered Jun 14, 2012 at 21:07

Paal Øye-Strømme

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2 Comments

webjprgm Over a year ago

The gem manages the dependency for you, rather than including underscore.js directly in your repository and having to download a new version when you want updates.

Alexander Popov Over a year ago

@webjprgm That's highly dependent on how often the gem's maintainer does this for you.

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