<!DOCTYPE html>
<html lang="zh">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>js根据月份获取天数和对应的星期</title>
</head>
<body>
</body>
<script>
var date = new Date();
var year = date.getFullYear(); //获取完整的年份(4位)
var month = date.getMonth() + 1; //获取当前月份(0-11,0代表1月)
var dataList = []
monthDays(year, month) //传入参数年和月
function monthDays(year, month) {
var stratDate = new Date(year, month - 1, 1),
endData = new Date(year, month, 1);
var days = (endData - stratDate) / (1000 * 60 * 60 * 24);
var list = []
for (var i = 1; i <= days; i++) {
const day = i;
const date = month + '-' + day;
const week =
new Date(month + '/' + i + '/' + year).getDay() == 0 ? '周日' : new Date(month + '/' + i + '/' + year)
.getDay() == 1 ? '周一' : new Date(month + '/' + i + '/' + year).getDay() == 2 ? '周二' : new Date(month +
'/' +
i + '/' + year).getDay() == 3 ? '周三' : new Date(month + '/' + i + '/' + year).getDay() == 4 ? '周四' :
new Date(month + '/' + i + '/' + year).getDay() == 5 ? '周五' : new Date(month + '/' + i + '/' + year)
.getDay() == 6 ? '周六' : '';
list.push({
date,
week,
day,
})
}
dataList = list
}
console.log(year, month, dataList, 'dataList')
</script>
</html>