Accessing javascript object with mixed key square brackets

Question

I'm trying to access elements of a javascript object. I have no control over how it has been created.

An example is as follows:

parameters = Object { checkout_method="guest",  billing[firstname]="fasfdas",  billing[lastname]="fdsa" }

this works fine -

var checkout = parameters.checkout_method;

however trying to access any of the billing ones results in either an error or an 'undefined'

var billing = parameters.billing['firstname'];
var billing = parameters['billing.firstname'];

basically I've crawled stackoverflow and tried about 20 different combinations to get the values with no result.

Does anyone have any idea how you access an object key with mixed square bracketed content?

Does parameters['billing[firstname]'] return the correct result? — Jordan Burnett
– Jordan Burnett, Commented Dec 12, 2016 at 17:33
As other have suggested.. does parameters["billing[firstname]"]; work? — Rajshekar Reddy
– Rajshekar Reddy, Commented Dec 12, 2016 at 17:36

Jordan Burnett · Accepted Answer · 2016-12-12 18:05:37Z

1

Confusingly, the object you have contains key names that contain square brackets.

Access them with

var billing = parameters['billing[firstname]'];

answered Dec 12, 2016 at 18:05

Jordan Burnett

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1 Comment

Ya that might be it. It is weird the object. Using the brackets with it inside the quotes might be correct.

L1ghtk3ira · Accepted Answer · 2016-12-12 17:44:25Z

0

Did you try this?

billing = parameters.billing.firstname;

Or

billing = parameters.billing.firstname?

They are sending you a weird object.

answered Dec 12, 2016 at 17:44

L1ghtk3ira

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He said he tried parameters.billing['firstname'], which is the same as what you suggest.