How do I output a Ruby hash as Javascript?

Question

I’m using Rails 4.2.7. I would like to take my hash created in Rails and output a Javascript variable that contains the hash (same data associations). So I have this in my view

var my_object_names = <%=h my_object_name_hash.to_json %>;

but what is output is

var my_object_names = {&quot;1403913600000&quot;:&quot;Proudun&quot;,&quot;1437782400000&quot;:&quot;BTN Event&quot;,&quot;1466812800000&quot;:&quot;Proud&quot;};

This results in a Javascript error, “SyntaxError: Unexpected token &”. What is a more elegant way to take a Ruby hash and output Javascript that contains the same data?

You're escaping the output ..

user2864740
– user2864740

2016-08-22 18:59:37 +00:00
Commented Aug 22, 2016 at 18:59 — user2864740
– user2864740, Commented Aug 22, 2016 at 18:59
What is the h after <%=?

Jonathan Allard
– Jonathan Allard

2016-08-22 18:59:41 +00:00
Commented Aug 22, 2016 at 18:59 — Jonathan Allard
– Jonathan Allard, Commented Aug 22, 2016 at 18:59

tadman · Accepted Answer · 2016-08-22 19:01:38Z

1

You're asking for that value to be HTML escaped with the h function, so you're getting it that way.

The way to do it without escaping is:

<%= object.to_json.html_safe %>

answered Aug 22, 2016 at 19:01

tadman

212k23 gold badges237 silver badges266 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

How do I output a Ruby hash as Javascript?

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related