San Francisco



4 students were there

May 8, 2014

Unobtrusive Javascript in Rails

A common task in web applications is to grab some data from the server and then update the current page accordingly, without wanting a full page reload. Unobtrusive Javascript (ujs) is a pattern for accomplishing this with ease.

In this class, we'll start making our views come to life by adding javascript to make them more dynamic.

We'll continue with the activity tracker application we started last week, but instead of going to new pages when we submit forms, we're going to make it into a single-page application that feels more fluid and natural.


  • ruby 2.1.1 (can probably get away with 1.9.3)
  • rails 4.1
  • fork and clone your fork (can get away with just cloning but then you won't be able to push back your changes)

    bash% git clone [email protected]:<your_username>/simple_tracker.git

  • switch to the branch we ended up with last time (activities_with_category)

    bash% git checkout -b activities_with_category
    bash% git pull origin activities_with_category

  • install dependencies

    bash% bundle install

  • launch a rails server

    bash% rails s

  • make sure the site is running at http://localhost:3000

2:30pm Pacific - 4:30pm Pacific on May 8, 2014 at Coshx Labs
4 students were there


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