Correctly get access to nested object in JavaScript

Question

I have the JS-object, that in Chrome's console looks as folllow:

data: Object
 comparisonType: "IN"
 dateValue: ""
 numericalValue: 0
 screeningCriterionId: "-4"
 screeningField.displayName: "Prop1"
 screeningField.fieldName: "Prop2"
 screeningField.groupName: "Prop3"
 screeningField.type: "MULTI"
 value: null

And I need to read the screeningField.displayName: "Prop1" from this object , but trying to execute in console this myObject.screeningField.displayName I'm getting the error:

TypeError: Cannot read property 'displayName' of undefined

How to solve my problem ?

If this is indeed what you see in your console, then apparently the dot is actually included in the key name: try myObject['screeningField.displayName'] — lanzz
– lanzz, Commented Dec 7, 2012 at 7:56
This does not look like JavaScript. What is your JavaScript code you use to initialize the object? @lanzz: incorrect, the error says screeningField is undefined. — Cerbrus
– Cerbrus, Commented Dec 7, 2012 at 7:56
Cerbrus, I'm getting this object from another code, which I can't watch to define how it initializes. — Eugene Shmorgun
– Eugene Shmorgun, Commented Dec 7, 2012 at 8:02
@lanzz, oh right, since screeningField doesn't exist, the only other option with that object structure would be that the dot is included in the key name? — Cerbrus
– Cerbrus, Commented Dec 7, 2012 at 8:04

lanzz · Accepted Answer · 2012-12-07 08:01:05Z

5

Apparently the dot is actually included in the key name, try:

myObject['screeningField.displayName']

answered Dec 7, 2012 at 8:01

lanzz

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