Javascript: How do I do array methods on propertied variables i.e. var.hello.push? Too used to AS3 -

I am trying to store data for many organizations, so I thought it was a good way to organize As I did in AS3, it was used to store the array methods according to any other variable such as

  StoreInventories.Shellys  

and then as necessary.

Example:

StoreInventories.Shellys.push ("Content")

But for this to work Looks like,

Type error: StoreInventories.Shellys.push is not a function

that console keeps spitting out How do I get this functionality should do?

Sorry, if I am misusing rules - jargon is not my strong suit and I go through any formal training.

Method Push () is defined for array class. So you need to create an array for the first time.

Here's the code:

  var StoreInventories = {}; Store Inventory Cellies = []; StoreInventories.Shellys.push ("Content");