React - remove nested array item using setState function call

Question

I am trying to remove a (semi) deeply nested item from an array using setState but it doesn\'t seem to be working. My state is structured as follows:

state = {
         


        

Answer 1

I think the issue here is how your code uses setState. The setState function must return an object. Assuming your filtering functions are correct as you describe, return an object to update the state:

return { series };

setState documentation