jquery access json when keys are numbers

Question

excuse my ignorance if this is obvious or answered before . I have a string like this

var test = {"99":{"ttop":"0","lleft":"0","wwidth":"881","hheight":"78"},
"42":{"ttop":"91","lleft":"110","wwidth":"285","hheight":"26"},
"43":{"ttop":"91","lleft":"490","wwidth":"117","hheight":"26"},
"44":{"ttop":"91","lleft":"5","wwidth":"87","hheight":"26"},
"36":{"ttop":"91","lleft":"630","wwidth":"251","hheight":"26"}}

I have read plenty about accessing with text identifiers (eg. "first-id" instead of "99") but I think my issue is that I get errors when I use a number for the id.

I Greatly appreciate your help

Arun P Johny · Accepted Answer · 2013-12-29 09:00:48Z

1

You need to use bracket notation instead of dot notation as member operator

test['99']

answered Dec 29, 2013 at 9:00

Arun P Johny

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1 Comment

T.J. Crowder Over a year ago

You can leave off the quotes if you like, the name will get coerced to a string.

Barmar · Accepted Answer · 2013-12-29 09:01:05Z

1

When the property name is not a valid identifier, use array syntax to access it:

test["99"]

answered Dec 29, 2013 at 9:01

Barmar

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Comments

art_hq · Accepted Answer · 2024-03-16 15:33:43Z

0

You can also do it like that:

var biggestId = Object.keys(json).sort().pop();
console.log(test[biggestId]);

So you get value of biggest key in collection but it is data specific solution

answered Mar 16, 2024 at 15:33

art_hq

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