Converting object into Json (stringify)

[sbala69gmail]

Hi ,

I have one doubt in stringify an object.

In input is below:

var obj = [{'name' : 'Jenisha', 'lastName' : 'dalin'}];
obj.__used = true;

My expected output:

JSON.stringify(obj, undefined, 4);
"[
    {
        "name": "Jenisha",
        "lastName": "dalin"
    }
],
"__used" : true
"

But the results are:

JSON.stringify(obj, undefined, 4);
"[
    {
        "name": "Jenisha",
        "lastName": "dalin"
    }
]"

"__used" param removed. is any alternate function available to stringify an object.

Thanks in advance.

[ljharb]

In this case, you’re attaching the property to the array, and while arrays are objects that can have properties, in JSON, the stringify algorithm ignores those.

If you have an object at the top level, then you can stick properties on that.

This repo is not for general javascript help, however - it’s for our javascript style guide - so I’m closing the issue.