삭제

  const deleteHandler = (id) => {
    let updatedWord = [...day1Wordlist].filter((word) => {
      return word.id !== id;
    });
    setDay1Wordlist(updatedWord);
  };

원하는것만 클릭해서 처리하기

function toggleComplete(id) {
    const updatedTodos = [...todos].map((todo) => {
      if (todo.id === id) {        
         return {
          ...todo, completed : !todo.completed
         }
      }
      return todo;
    });
    setTodos(updatedTodos);
  }


{todoEditing === todo.id ? null : (
                  <input
                    type="checkbox"
                    className="complete"
                    onChange={() => toggleComplete(todo.id)}
                    checked={todo.completed}
                  />
                )}