Escape String - Output rails string in Javascript [duplicate]

Answer 1

You can use escape_javascript() to accomplish that:

var data = {
    'name': "<%== escape_javascript @product.name %>",
    #...
};

Link: http://api.rubyonrails.org/classes/ActionView/Helpers/JavaScriptHelper.html#method-i-escape_javascript

The alias of this method is j:

 var data = {
     'name': "<%== j @product.name %>"
 }

Answer 2

var data = {
   'name': '<%=j @product.name.html_safe %>',
   ...
};