How to use php json_encode options in twig file with json_encode twig function

Question

I am trying to use twig json_encode function but when I do this

    var packageDetails =  {{(packageDetails|json_encode)}};

and packageDeta

Answer 1

Is it simply because you are not wrapping your output in quotes?

var variable = '{{{reference}}}';

Update:

The actual answer to solve the question was adding |raw to the tag as per comments

var packageDetails =  {{(packageDetails|json_encode|raw)}};