Convert Javascript Object to different alternatives array keeping keys [duplicate]

Question

I'm trying to convert this Javascript object:

image_uploads: [
  0: {
    upload_id: 50,
  },
  1: {
    upload_id: 51,
  },
  2: {
    upload_id: 52,
  },
]

Into different entries using this format to be able to send it in the body of a POST request:

image_uploads[0][upload_id] = 50
image_uploads[1][upload_id] = 51
image_uploads[2][upload_id] = 52

Probably needing an array of those entries like:

params: [
  "image_uploads[0][upload_id]": 50,
  "image_uploads[1][upload_id]": 51,
  "image_uploads[2][upload_id]": 52,
]

Thanks!

Your javascript object is not an object but a weird hybrid between object and array.. — Jordan Soltman
– Jordan Soltman, Commented Jul 6, 2018 at 22:21
Are you using jQuery? jQuery.param(object) will create that format. — Barmar
– Barmar, Commented Jul 6, 2018 at 22:36

user6702203 · Accepted Answer · 2018-07-06 22:47:57Z

0

If you want to keep appending keys inside an array. You can do that with:

var image_uploads = [];
image_uploads.push({'upload_id': 50});
image_uploads.push({'upload_id': 51});
image_uploads.push({'upload_id': 52});

Then you can access them like so:

image_uploads[0]['upload_id']; // 50
image_uploads[1]['upload_id']; // 51
image_uploads[2]['upload_id']; // 52

For both creating your array and accessing them, you can also use loops.

answered Jul 6, 2018 at 22:47

user6702203

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1 Comment

He's trying to create the serialized parameter names to send to a server.