Insert JavaScript variable into JSON

Question

I want to insert a js variable into json (to show a message on slack). I have tested this :

 "fields":[  
     {  
        "title": "Reported by:",
        "value": "'+ user + '",
        "short": "false"
     },

but it doesn't work and show me this :

Reported by:

'+ user +'

Thanks you !

Answer 1

It looks to me like you should be doing something like:

"value": "'" + user + "'",

Before user was still part of the string expression.