因此，當(dāng)用戶單擊反應(yīng)中的按鈕時(shí)，我嘗試創(chuàng)建一個(gè)背景為灰色的彈出菜單 我的代碼如下所示：//ifButtonClicked called another class. this function only runs if another //button is clicked//some codeexport function ifButtonClicked(){var element = document.createElement("div");var post_settings = document.createElement("div");post_settings.className = "post_settings";post_settings.innerHTML = "button"post_settings.onclick = (event) => onClickPostSettings(event);element.append(post_settings);}function onClickPostSettings(event){      //I want it to popup a menu here }*/由于我不能使用 HTML 標(biāo)簽，我想知道是否有任何方法可以在 onClick 上實(shí)現(xiàn)彈出菜單。我應(yīng)該創(chuàng)建一個(gè)新類并在 onClickPostsettings 中調(diào)用該類嗎？