I'm implementing a to-do list app using Recoil. The function to delete items is not working properly yet. Below is a part of my code.
// ToDoList.js
import React from 'react';
import { useRecoilValue, useRecoilState } from 'recoil';
import { todoListState } from './atoms';
function ToDoList() {
const [todos, setTodos] = useRecoilState(todoListState);
const handleDelete = (id) => {
setTodos([])
};
return (
<div>
<ul>
{todos.map((todo) => (
<li key={todo.id}>
{todo.text}
<button onClick={() => handleDelete(todo.id)}>DELETE</button>
</li>
))}
</ul>
</div>
);
}
export default ToDoList;
The item is not deleted correctly and the list is not updated.
You can modify the handleDelete function to remove the item with the specified ID from the todoListState
atom. Here's an example implementation:
import React from 'react';
import { useRecoilValue, useRecoilState } from 'recoil';
import { todoListState } from './atoms';
function ToDoList() {
const [todos, setTodos] = useRecoilState(todoListState);
const handleDelete = (id) => {
setTodos((prevTodos) => prevTodos.filter((todo) => todo.id !== id));
};
return (
<div>
<ul>
{todos.map((todo) => (
<li key={todo.id}>
{todo.text}
<button onClick={() => handleDelete(todo.id)}>DELETE</button>
</li>
))}
</ul>
</div>
);
}
export default ToDoList;