Include all object properties with JSON.stringify()'s replacer array

Question

I have this object, which we'll call JSONchunk:

{
    "stuffIWant": {
        "number": 123,
        "string": "string",
        "boolean": true
    },
    "boringDumbStuff": {
        "number": 456,
        "boolean": false
    }
}

I want to get every property of stuffIWant. However, I don't know all the properties that stuffIWant will contain at a given time.

I was hoping to use JSON.stringify(JSONchunk, ['stuffIWant']) but I only get part of the output I want. Namely, it returns {stuffIWant: {}}. Close, but no ciggie.

EDIT: Here's the result I'm looking for.

{
    "stuffIWant": {
        "number": 123,
        "string": "string",
        "boolean": true
    },
}

Is there a way to use a replacer array to return an object AND all of its properties without explicitly referencing those properties in the array? Or will I need to craft something a little more sophisticated?

To loop all properties of an object, use something like for(var i in obj.stuffIWant) {} — Hikariii
– Hikariii, Commented Mar 27, 2016 at 20:35
Added! I can't overstate that the properties listed there are not fixed, and may have more or less entries with completely different key names at any given time. — rydash
– rydash, Commented Mar 27, 2016 at 20:35
JSON.stringify(JSONchunk.stuffIWant)? Am I missing something? — George Kagan
– George Kagan, Commented Mar 27, 2016 at 20:38
I thought that you were looking something more complicated than just stringifying JSONchunk.stuffIWant. The question was artful ... thats funny — RomanPerekhrest
– RomanPerekhrest, Commented Mar 27, 2016 at 20:45

yuvi · Accepted Answer · 2016-03-27 20:39:14Z

3

Simple:

JSON.stringify(JSONchunk.stuffIWant)

answered Mar 27, 2016 at 20:39

yuvi

18.5k9 gold badges63 silver badges98 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

rydash Over a year ago

Welp, I made that WAY harder than it needed to be. Thanks for this, it's much easier!

yuvi Over a year ago

@Rydash Don't feel too bad. I'm sure Brendan Eich said the same thing after creating Javascript

Collectives™ on Stack Overflow

Include all object properties with JSON.stringify()'s replacer array

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related