CODEWITHSUNDEEP
javascriptnode.jsjson
user6680
user6680

Reputation: 139

JSON stringify not including fields added to object

I have a JSON object where I need to append the fields bioDescription and bioPicUrl to the object before I JSON.stringify() the data. I can add the fields and it outputs the to the screen as a JSON object as seen in output below.

OUTPUT

[4/10/2020 3:59:23 PM]     OUTPUT
[4/10/2020 3:59:23 PM]     _id: 5e907943a9a0e12b90b178c9,
[4/10/2020 3:59:23 PM]     title: 'test',
[4/10/2020 3:59:23 PM]     startingBid: '10.00',
[4/10/2020 3:59:23 PM]     increments: '15.00',
[4/10/2020 3:59:23 PM]     shippingCost: 'Free Shipping',
[4/10/2020 3:59:23 PM]     auctionType: 'publicAuction',
[4/10/2020 3:59:23 PM]     creator: 5e9076fc2da43424e8e3df82,
[4/10/2020 3:59:23 PM]     __v: 0 },
[4/10/2020 3:59:23 PM]   bioDescription: 'testtt',
[4/10/2020 3:59:23 PM]   bioPicUrl: null ]

but when I JSON.stringify() the data, the bioDescription and bioPicUrl fields are not included. I tried adding | delimiter as something I can use .split("|") function and add , to, but it doesn't parse right and I feel like there's an easier way lol. I appreciate any help! How can I get the data to append and stringify together?

  .then(documents => {

                documents.bioDescription = artistBioResults.bioDescription;
                documents.bioPicUrl = artistBioResults.bioPicUrl;

                output = JSON.stringify(documents);
             //   output = output + "|" + bioDescription + "|" + bioPicUrl;

                console.log("OUTPUT");
                console.log(documents);

Upvotes: 0

Views: 537

Answers (2)

Samuel Danielson
Samuel Danielson

Reputation: 5471

These lines give it away. Note the }, and the ]

[4/10/2020 3:59:23 PM]     __v: 0 },
[4/10/2020 3:59:23 PM]   bioDescription: 'testtt',
[4/10/2020 3:59:23 PM]   bioPicUrl: null ]

You are adding the attributes to an array of documents, not each document in the collection. Try this...

documents.forEach(doc => {
    doc.bioDescription = 'test';
    doc.bioPicUrl = null;
});

OTOH, if you are actually trying to add properties to the whole array, JSON.stringify() will ignore them since there is no way to put array properties into JSON syntax.

The solution is to wrap theses other properties in an object that includes your array. The following javascript has a JSON representation that wont drop the properties you're interested in keeping.

{ documents: [], bioDescription: 'test', bioPicUrl: null }

Upvotes: 2

terrymorse
terrymorse

Reputation: 7096

documents is an array.

You can't do this with an array:

documents.documents.bioDescription = something

Upvotes: 0

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