Using Ruby variable in Javascript (In App View)

Question

Currently, I have a ruby variable accessible by the view called @json (which contains information I need in JSON format)

However, I want to pass this into a script area such as

<script type="text/javascript" charset="utf-8">

//Want @json to be usable here

</script>

Is there any way to do this?

Trent Earl · Accepted Answer · 2012-12-02 20:00:23Z

6

Assuming the script tag you mentioned is in a html erb view you can just use this:

<script type="text/javascript" charset="utf-8">
var json = <%= @json || 'null' %>;
</script>

answered Dec 2, 2012 at 20:00

Trent Earl

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Comments

Christian · Accepted Answer · 2013-07-29 18:58:21Z

2

Another way to do it is like this: var json = "#{ @json || 'null' }"

answered Jul 29, 2013 at 18:58

Christian

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Samo · Accepted Answer · 2012-12-04 16:48:10Z

1

Better wrap that in quotes:

<script type="text/javascript">
  var json = "<%= @json %>";
</script>

answered Dec 4, 2012 at 16:48

Samo

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