我正在嘗試創(chuàng)建一個(gè)函數(shù)，該函數(shù)根據(jù)字符串中提供的日期創(chuàng)建動(dòng)態(tài)日期范圍。到目前為止我做了什么：在我要更改的字符串中捕獲日期；檢查該日期是否為星期四（如果是，則該范圍需要考慮周末）我需要做什么：找到一種方法來(lái)獲取范圍內(nèi)的第二個(gè)日期以考慮周末；想辦法確保第二個(gè)日期考慮到該月的最后一天。為舊語(yǔ)法道歉，GTM 不喜歡使用 ES6 的任何東西，所以我在這個(gè)項(xiàng)目上有點(diǎn)受限。注意我使用的是 DD/MM/YYYYvar regex = /[\d\/\d\/\d]/g;var text = dument.querySelector('.shipmentLineTitle b');var originalDate = text.innerText.match(regex, "");if (originalDate.length > 10) {    originalDate.pop();    originalDate.join('');}var ogDateString = originalDate.join('');var dayNumber = originalDate.splice(0, 2).join('');var monthNumber = originalDate.splice(1, 2).join('');var yearNumber = originalDate.splice(2, 4).join('');// if originalDate is a thursday (5) dynamicString will need to be a Monday (1).var date = new Date(yearNumber, monthNumber -1, dayNumber);var dynamicDateString = "";if (date.getDay == 5) {    var newDate = new Date(date) + (86400000 * 3);    var dd = newDate.getDate();    var mm = newDate.getMonth() +1;    var yy = newDate.getFullYear();    dymamicDateString = dd + '/' + mm + '/' + yy;} else {    var newDate = new Date(date) + 86400000;    var dd = newDate.getDate();    var mm = newDate.getMonth() +1;    var yy = newDate.getFullYear();    dynamicDateString = dd + '/' + mm + '/' + yy;}var newContent = 'Delivery will be made between ' + ogDateString + ' - ' + dynamicDateString + '. An accurate delivery date will be provided after you place your order.';text.innerText = newContent;<span class="shipmentLineTitle">Delivery details: <b>your delivery will arrive on 09/10/2020 (1 delivery)</b></span>