FromJS | See where each character on the screen came from in code | Runtime Evironment library

Not sure if this breaks any of your functionality as I have little context of exactly what you are trying to do. But you can get rid of the error by saying that you want key of user in fromJS, like this:

If you look at the documentation, in Observable Arrays, you could read this:

pop, push, shift, unshift, reverse, sort, splice

All of these functions are equivalent to running the native JavaScript array functions on the underlying array, and then notifying listeners about the change

When you do:

Looks like asset.Id is an object. Try to investigate why it is object and not some number or string.

First of all define your rest api function like below

You need to create a spy of fetch before rendering the component with jest.spyOn(object, methodName):

In the foreach you can't use $data:

Actually the array are of type object. for example if you log the type of an array you'll get "object"

Example:

I am answering blindly here. Without having seen any code, the issue is probably that the modified state is not applied.

Remember, Immutable objects never change, mutations always result in a new object being returned. So if you forget to return/apply the returned object, your change is lost.

I reviewed my answer, and update it according to your question update

The syntax you use for defining async function is called a thunk a fancy name for a function that return a promise (or async function), anyway to use that pattern in code you need a library called redux-thunk

To apply the redux-thunk middle ware for your application,