我有一個看起來像這樣的日曆,其樣式使用 Tailwind CSS:
8 Wednesday 目前已被點擊,因此它具有粉紅色的背景和粉紅色的陰影。第 7 個是之前點擊的元素,這就是為什麼它只有粉紅色陰影(我刪除了粉紅色背景類,但保留了粉紅色陰影)。
我想要的是保留最新的先前單擊的元素,以便我可以添加粉紅色陰影,但僅限於最新的元素,而不是所有先前單擊的元素。
這就是我的 JavaScript 程式碼的樣子:
//select needed elements from HTML const calendarDates = document.querySelectorAll('.clickable') const dateDisplay = document.getElementById('show-details'); const selectedDateDayElement = document.getElementById('selected-date-day'); const selectedDateElement = document.getElementById('selected-date'); let latestClicked = null; let latestPreviouslyClicked = null; // if there is no date, dont add hover efects for (let i = 0; i < calendarDates.length; i++) { if (calendarDates[i].textContent.trim() === '') { calendarDates[i].classList.remove('hover:bg-pink-500', 'hover:shadow-md', 'hover:cursor-pointer', 'hover:shadow-pink-500'); calendarDates[i].classList.add('empty') } } // select only elements that are not empty const clickableDates = document.querySelectorAll('.clickable:not(.empty)'); clickableDates.forEach(dateElement => { dateElement.addEventListener('click', () => { const dateValue = dateElement.textContent.trim(); const year = 2017; const month = 1; if (latestClicked !== null) { latestPreviouslyClicked = latestClicked; latestClicked = null; latestPreviouslyClicked.classList.remove('bg-pink-500'); } dateElement.classList.add('bg-pink-500', 'shadow-md', 'shadow-pink-500'); latestClicked = dateElement; const selectedDate = new Date(year, month, parseInt(dateValue)); const daysOfWeek = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday']; const dayOfWeek = daysOfWeek[selectedDate.getDay()]; selectedDateDayElement.textContent = dayOfWeek; selectedDateElement.textContent = dateValue; dateDisplay.style.display = 'block'; }); }); // Close the date details when clicked outside, and this works at it should document.addEventListener('click', event => { if (!event.target.classList.contains('clickable')) { clickableDates.forEach(element => { element.classList.remove('bg-pink-500'); }); dateDisplay.style.display = 'none'; } });
我面臨的問題是它保留了所有先前點擊的元素的陰影:
預期行為是:
好吧,我也誤讀了你的問題。
問題出在部分
您實際上只是從
latestClicked
元素中刪除背景,而從未刪除陰影樣式。這應該有效:
重要的部分是在將元素重新分配給下一個元素之前改變該元素。
或者,如果可選連結在您的環境中工作(捆綁程式或僅支援新瀏覽器):