1_cristmas gifts delivery - js advanced exam

function solution() {

    let input = document.querySelector('.card input');
    let button = document.querySelector('.card button');
    let ulElement = document.querySelector('.card ul');

    button.addEventListener('click', e => {
        e.preventDefault();

        let liElement = document.createElement('li');
        liElement.setAttribute('class', 'gift');
        liElement.textContent = input.value;

        let btnSendElement = document.createElement('button');
        btnSendElement.setAttribute('id', 'sendButton');
        btnSendElement.textContent = 'Send';
        let btnDiscardElement = document.createElement('button');
        btnDiscardElement.setAttribute('id', 'discardButton');
        btnDiscardElement.textContent = 'Discard';

        liElement.appendChild(btnSendElement);
        liElement.appendChild(btnDiscardElement);
        ulElement.appendChild(liElement);

        input.value = "";

        let allLiElements = Array.from(ulElement.querySelectorAll('li'));
        let sortedLiElements = allLiElements.sort((a, b) => a.innerText.localeCompare(b.innerText));

        while (ulElement.firstChild) {
            ulElement.firstChild.remove();
        }

        for (const element of sortedLiElements) {
            ulElement.appendChild(element);
        }

        btnSendElement.addEventListener('click', e => {
            e.preventDefault;

            let ulSentElement = document.querySelector('.container > section:nth-of-type(3) > ul');
            e.target.remove();
            btnDiscardElement.remove();
            ulSentElement.appendChild(liElement);

        })

        btnDiscardElement.addEventListener('click', e => {
            e.preventDefault;

            let ulDiscardElement = document.querySelector('.container > section:nth-of-type(4) > ul');
            e.target.remove();
            btnSendElement.remove();
            ulDiscardElement.appendChild(liElement);
        })

    })

}