最近做的项目需要获取当前日期前7天及前一个月的日期数据，直接上代码。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>js date</title>
</head>
<body>
<div>
<span>当前日期前7天:</span>
<span id="datePrev"></span>
</div>
<div>
<span>当前日期后10天:</span>
<span id="dateNext"></span>
</div>
<script>
// 当前日期的前7天
var datePrev = [];
var myDate = new Date();
for (var i = 0; i < 7; i++) {
dateStr = myDate.getFullYear() + "-" + (Number(myDate.getMonth()) + 1) + "-" + myDate.getDate();
datePrev.unshift(dateStr);
myDate.setTime(myDate.getTime() - 1000 * 60 * 60 * 24);
}
document.getElementById('datePrev').innerHTML = datePrev;
// 当前日期的后10天
var dateNext = [];
var myDate = new Date();
for (var i = 0; i < 10; i++) {
dateStr = myDate.getFullYear() + "-" + (Number(myDate.getMonth()) + 1) + "-" + myDate.getDate();
dateNext.push(dateStr);
myDate.setTime(myDate.getTime() + 1000 * 60 * 60 * 24);
}
document.getElementById('dateNext').innerHTML = dateNext;
</script>
</body>
</html>