Why are the properties of this object undefined? Javascript

Question

Attribute is an object in this form:

 var attribute = { AttributeId: attributeId, EntityId: entityId, AttributeDBName: attributeDbName, AttributeDisplayName: attributeDisplayName, IsSearchable: isSearchable, IsDeleted: isDeleted, IsVisible: isVisible, AttributeTypeId: attributeTypeId, Description: description, IsSystem: isSystem, IsActive: isActive, IsUnique: isUnique, IsRequired: isRequired, IsPersistent: isPersistent, DefaultValue: defaultValue };

That attribute then gets passed to this function along with the ID of a grid:

function AddAttributeToGrid(attribute, gridId) { console.log(attribute); //Works! Displays the attribute. var id = a.attributeId; console.log(id);//UNDEFINED? WHAT? }

If I create a global variable (let's call it 'tempAttribute') and set it inside of AddAttributeToGrid, like so:

 function AddAttributeToGrid(attribute, gridId) { tempAttribute = attribute }

I can then access the properties of tempAttribute...

Why can I not get the data from the properties? What is going on?

Denys Séguret · Accepted Answer · 2013-08-24 11:32:45Z

The property of attribute is AttributeId, not attributeId.

JavaScript is case sensitive.

But this assumes you initialized your object with a defined attributeId to start with. This is not clear in your code.

Mithun Satheesh · Accepted Answer · 2013-08-24 11:32:08Z

1

i think you have

var id = a.attributeId;

instead of

var id = attribute.AttributeId;

inside the AddAttributeToGrid function definition

answered Aug 24, 2013 at 11:32

Mithun Satheesh

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1 Comment

pookie Over a year ago

Close :) Turns out it was just a damn capitol letter instead of lowercase!

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