Javascript access array within object

Question

I have a javascript object called event which is output from the console.log below:

{
"title": "Test Title",
"location": "Test Location",
"isAllday": false,
"isPrivate": false,
"state": "Busy",
"start": {
    "tzOffset": null,
    "d": {
        "d": "2023-01-03T16:00:00.000Z"
    }
},
"end": {
    "tzOffset": null,
    "d": {
        "d": "2023-01-03T16:30:00.000Z"
    }
},
"id": "afdb82fd-fddd-58ce-bd0b-ab0beb2bce7b"

}

I can access some items through alert(event['title'] + event['location']); I cannot access the nested items like start.tzOffset.d If I try alert(event['title'] + event['start']['tzOffset']['d']); I get an error "Uncaught TypeError: Cannot read properties of null (reading 'd')"

Any help greatly appreciated.

You’re trying to access 'd' IN 'tzOffset' - but it's not there, but in other d. I mean event['start']['d']['d']. — sashok1337
– sashok1337, Commented Jan 3, 2023 at 19:08

Bemwa Malak · Accepted Answer · 2023-01-03 19:09:11Z

2

That's because tzOffset doesn't have a nested key called d inside of it. instead it is inside start object and inside d object there is a key called d so it needs to be like this:

alert(event['title'] + event['start']['d']['d']);

answered Jan 3, 2023 at 19:09

Bemwa Malak

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sandip rana · Accepted Answer · 2023-01-04 10:22:47Z

0

You can access the d from event['start']['d']['d']), Because tzOffset doesn't have any value to access.

answered Jan 4, 2023 at 10:22

sandip rana

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Comments

Dmitry Yudin · Accepted Answer · 2023-01-16 17:23:05Z

-1

alert(event['title'] + event['start']['d'])

It seems that there is no key "d" in "tzOffset",because it is null.

edited Jan 16, 2023 at 17:23

answered Jan 3, 2023 at 19:08

Dmitry Yudin

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1 Comment

Stephen Ostermiller Over a year ago

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