Ruby on Rails Embed Ruby Code in Javascript inside Application Erb File

I need help in displaying the output of a rails helper method inside the script tags in the application.html.erb layout file. I put the following code just before the closing html tag:

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

This current_user_json is a helper method that is in the application controller file.

The output the above code produces in the browser(view page source) is:

<script>
    App.ready = function() {
        App.initApp(jQuery.parseJSON("{&quot;id&quot;:3,&quot;email&quot;:&quot;user5@user.com&quot;,&quot;username&quot;:null}"));
    }
</script>

The proper output should be:

<script>
     App.ready = function() {
         App.initApp(jQuery.parseJSON('{"id":3,"email":"user5@user.com","username":null}'))
     }
</script>

If someone could help me out, I will really be relieved of this problem I am trying to resolve for the past couple of days.