Client-side-state for todo app (pseudo-react)

todo-state.js

let list = [
  { id: 1, text: "clean the house" },
  { id: 2, text: "buy milk" }
];

// REDUCERS
const _addItem    = (list, item) => [...list, { ...item, id: uniqueId() }]
const _deleteItem = (list, item) => list.filter(todo => todo.id !== item.id)

// STUBS: 
const useList    = ()     => list // React hook
const deleteItem = (item) => null // dispatcher
const addItem    = (item) => null // dispatcher