moment.js 获取指定时间的本周一和下周一
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<title>Document</title>
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<body>
<script src="moment.js"></script>
<script>
var date = moment("2019-10-09");
var dow = date.day();
var monday1 = date.subtract(dow-1, 'days').format('YYYY-MM-DD')//本周一
console.log('本周一：',monday1)
var monday2 = moment(monday1).subtract(-7, 'days').format('YYYY-MM-DD')//下周一
console.log('下周一：',monday2)
console.log(dow); //判断是本周的第几天
</script>
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