Why does the Redux store change?

Question

React

Hello.
I observe very strange behavior in the functional component
Stack React / Redux

Such a situation.

In a functional component, through props, I get an array from the redux store

Let 's say

const GroupUsersList = (props) => {
  const modules = props.data 

  if (чего то там) {
    modules.users.push({ _id: user._id, name: `${user.ФИО} (${user.login})` })
  }
  return (
    <>
    </>
  )
}
export default GroupUsersList;

But after I change the array using one of the array methods (push, splice
, etc.), I immediately change the data in the redux store.

What could be the reason for this?

Answer 1

With the fact that objects (and arrays) in js are passed by reference. You are pushing into an array in the store. Obviously the array is changing.