interpolating ruby in JavaScript unexpected token error

Question

I have source code for an app that uses Ember,CoffeeScript, Haml with Rails. In the layout file, it initiates the app with this code, which has a current_user_json helper method written in Ruby

:javascript
    App.ready = function() {
      App.initApp(jQuery.parseJSON('#{current_user_json}'))
    }

Trying to recreate the app with erb and JavaScript, I get an unexpected token error

Uncaught SyntaxError: Unexpected token #

If I do the following

  <script type="text/javascript">
 App.ready = function() {
      App.initApp(jQuery.parseJSON('#{ current_user_json}'));
    }
  </script>

Why is that token unexpected and how can I avoid that error?

#{ variable } interpolation is only for HAML.

Chloe
– Chloe

2014-01-26 23:24:07 +00:00
Commented Jan 26, 2014 at 23:24 — Chloe
– Chloe, Commented Jan 26, 2014 at 23:24

Nick Veys · Accepted Answer · 2013-09-04 20:01:14Z

1

I can't tell if it's not working for you in HAML or not based on your question. I would assume it is, because I use that same method as well and it works fine.

As for ERB, I don't personally use it but I don't think you can just drop a string in like that, try this:

<script type="text/javascript">
  App.ready = function() {
    App.initApp(jQuery.parseJSON('<%= current_user_json %>'));
  }
</script>

edited Sep 4, 2013 at 20:01

answered Sep 4, 2013 at 19:56

Nick Veys

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Comments

max · Accepted Answer · 2019-11-14 22:49:06Z

0

Change it to double quotes.

App.initApp(jQuery.parseJSON("#{ current_user_json}"));

answered Nov 14, 2019 at 22:49

max

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