trouble referencing JSON array

Question

I am still new to JSON so I have a probably very stupid question. How do I reference
list.data[0].bom-item.descriptor? The alert statement I created didn't work for me. Thanks for help.

var txt='{"list": {"data": [{"bom-item": {"dmsID": 3949,"bomPath": "3951B3949","workspaceType": 6,"workspaceID": 8,"bomDepthLevel": 1,"quantity": 1,"formattedQuantity": "1.0","descriptor": "500-0059-000 - FCI, P681-C01 SKU77 (900-60681-0077-400) [REV:D]","revision": "D","units": "EA","itemNumber": 1,"assembly": false,"cost": 0,"isPinned": false,"quoteID": 0,"isUsingDefaultQuote": false,"leaf": false,"redlinedCost": -1,"redlineAddition": false,"redlineAgainstVersion": -1,"redlineDeletion": false,"totalWeight": 1,"lifecycleStatus": "Production","hasSourcing": false,"fields": null}}]}}'



alert(txt.list.data[0].bom-item.descriptor);

what happens when you run that alert statement?

Sam I am says Reinstate Monica
– Sam I am says Reinstate Monica

2013-08-13 14:43:38 +00:00
Commented Aug 13, 2013 at 14:43 — Sam I am says Reinstate Monica
– Sam I am says Reinstate Monica, Commented Aug 13, 2013 at 14:43

Reinstate Monica -- notmaynard · Accepted Answer · 2013-08-13 14:38:35Z

In your current code, txt is just a string, so it has no JSON object properties. You need to use JSON.parse() to translate it to a JSON object (and use index notation as stated in another answer — the hyphen - is what's causing the trouble):

<  yourObj = JSON.parse('{"list": {"data": [{"bom-item": {"dmsID": 3949,"bomPath": "3951B3949","workspaceType": 6,"workspaceID": 8,"bomDepthLevel": 1,"quantity": 1,"formattedQuantity": "1.0","descriptor": "500-0059-000 - FCI, P681-C01 SKU77 (900-60681-0077-400) [REV:D]","revision": "D","units": "EA","itemNumber": 1,"assembly": false,"cost": 0,"isPinned": false,"quoteID": 0,"isUsingDefaultQuote": false,"leaf": false,"redlinedCost": -1,"redlineAddition": false,"redlineAgainstVersion": -1,"redlineDeletion": false,"totalWeight": 1,"lifecycleStatus": "Production","hasSourcing": false,"fields": null}}]}}')
>  [object Object]
<  yourObj.list.data[0]["bom-item"].descriptor
>  "500-0059-000 - FCI, P681-C01 SKU77 (900-60681-0077-400) [REV:D]"

Info on the JSON object at MDN.

SLaks · Accepted Answer · 2013-08-13 14:28:36Z

1

bom-item is not a legal Javascript identifier.

Instead, you need to use indexer notation:

txt.list.data[0]["bom-item"].descriptor

Or, better yet, use camelCase instead.

answered Aug 13, 2013 at 14:28

SLaks

891k182 gold badges1.9k silver badges2k bronze badges

Collectives™ on Stack Overflow

trouble referencing JSON array

2 Answers 2

Comments

Comments

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Related