Optimized redux connectors.

AddTodoContainer.js

import { connect } from 'react-redux';
import { addTodo } from '../reducers/todo';

import AddTodo from '../components/AddTodo';

const Container = connect(
  state => ({
    todos: state.todos.all
  }),
  { addTodo },
  null,
  {
    areStatesEqual: (next, prev) => {
      return (
        prev.todos.all === next.todos.all
      );
    }
  }
)(AddTodo);

export default Container;

UsersContainer.js

import { connect } from 'react-redux';
import { removeUser } from '../reducers/user';

import Users from '../components/Users';

const Container = connect(
  state => ({
    users: state.users.all
  }),
  { removeUser },
  null,
  {
    areStatesEqual: (next, prev) => {
      return (
        prev.users.all === next.users.all
      );
    }
  }
)(Users);

export default Container;