Created
May 28, 2021 07:35
-
-
Save ravid7000/f1d69447fe5fe58230f839b05b6a044c to your computer and use it in GitHub Desktop.
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| import { useMemo, useState } from "react" | |
| export const useTodoController = () => { | |
| const [todoList, setTodoList] = useState([]); | |
| const [todoName, setTodoName] = useState(''); | |
| const [doneTodo, undoneTodo] = useMemo(() => { | |
| const done = todoList.filter(item => item.done).length; | |
| const undone = todoList.length - done; | |
| return [done, undone]; | |
| }, [todoList]); | |
| const addTodo = (e) => { | |
| e.preventDefault(); | |
| setTodoList(prevList => { | |
| const newTodo = { | |
| name: todoName, | |
| id: prevList.length + 1, | |
| done: false, | |
| } | |
| return [newTodo, ...prevList]; | |
| }); | |
| setTodoName(''); | |
| } | |
| const removeTodo = (id) => { | |
| setTodoList(prevList => { | |
| return prevList.filter((item) => item.id !== id); | |
| }) | |
| } | |
| const toggleTodo = (id) => { | |
| setTodoList(prevList => { | |
| return prevList.map((item) => { | |
| if (item.id === id) { | |
| item.done = !item.done; | |
| } | |
| return item; | |
| }); | |
| }) | |
| } | |
| const changeTodoName = (e) => { | |
| setTodoName(e.target.value); | |
| } | |
| return { | |
| state: { | |
| todoList, | |
| doneTodo, | |
| undoneTodo, | |
| todoName, | |
| }, | |
| actions: { | |
| addTodo, | |
| removeTodo, | |
| toggleTodo, | |
| changeTodoName, | |
| } | |
| } | |
| } |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment