使用Moment.js求和的差异日期

Question

如何将"moment.preciseDiff(bDt，eDt )“添加到"moment.preciseDiff(bDt2，eDt2)”。例如：

var bDt = moment(new Date(data.startDate), "M/DD/YYYY");
var eDt = moment(new Date(data.endDate), "M/DD/YYYY");
var dtDiff = moment.preciseDiff(bDt, eDt);

var bDt2 = moment(new Date(data.startDate2), "M/DD/YYYY");
var eDt2 = moment(new Date(data.endDate2), "M/DD/YYYY");
var dtDiff2 = moment.preciseDiff(bDt2, eDt2);

如何向dtDiff2添加dtDiff

Answer 1

我不确定我是否理解正确。下面是我要做的；使用momentjs diff()获取两个日期之间的差值(以毫秒为单位)，并使用add()通过指定ms作为说明符来添加差值。

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const start1 = moment("26-09-2021", "DD-MM-YYYY");
const end1 = moment("29-09-2021", "DD-MM-YYYY");
const diff1 = moment(end1).diff(start1);

const start2 = moment("18-09-2021", "DD-MM-YYYY");
const addedDate = moment(start2).add(diff1, "ms");
console.log(addedDate.format("DD-MM-YYYY"));

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>

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