你好伙计我想用javascript或通过一些具有以下功能的jquery日历插件显示周结束日期
它看起来像这样：
周结束：<以dd / MMM / YYYY格式显示周末日期>
然后，如果我们点击这些左右箭头，它应该以相同的格式显示下周末。
请建议我，如果有一个具有类似功能的插件，或者如果我们可以通过简单的javascript实现这一点
<html>
<head>
<script>
function myFunction(data) {
if(data == "down")
change = change - 7;
else if(data == "up")
change = change + 7;
var someDate = new Date();
var day = someDate.getDay();
var numberOfDaysToAdd = 0;
if(day == 1)
numberOfDaysToAdd = 5;
else if(day == 2)
numberOfDaysToAdd = 4;
else if(day == 3)
numberOfDaysToAdd = 3;
else if(day == 4)
numberOfDaysToAdd = 2;
else if(day == 5)
numberOfDaysToAdd = 1;
someDate.setDate(someDate.getDate() + numberOfDaysToAdd + change);
var dd1 = someDate.getDate();
var mm1 = someDate.getMonth() + 1;
var yy1 = someDate.getFullYear();
someDate.setDate(someDate.getDate() + 1);
var dd2 = someDate.getDate();
var mm2 = someDate.getMonth() + 1;
var yy2 = someDate.getFullYear();
var someFormattedDate = dd1 + '/'+ mm1 + '/'+ yy1 + '\n' + '&' +
dd2 + '/'+ mm2 + '/'+ yy2;
document.getElementById("showWeekends").innerHTML = someFormattedDate;
}
</script>
</head>
<body>
<button onclick="myFunction('down')"><</button>
<span id="showWeekends"></span>
<button onclick="myFunction('up')">></button>
</body>
<script>
var change = 0;
myFunction("none");
</script>
</html>使用它来获取一周的第一天和最后一天。
var curr = new Date; // get current date
var first = curr.getDate() - curr.getDay(); // First day is the day of the month - the day of the week
var last = first + 6; // last day is the first day + 6
var firstday = new Date(curr.setDate(first)).toUTCString();
var lastday = new Date(curr.setDate(last)).toUTCString();
console.log("Week Start : "+firstday);
console.log("Weekend : "+lastday);
var date = new Date(lastday);
var formattedDate = date.getDate() + '/' + (date.getMonth() + 1) + '/' + date.getFullYear();
console.log(formattedDate);您可以使用lastday手动更改getDay(), getMonth() and getFullYear()格式
试试这个 。
var current = new Date(); // get current date
var weekstart = current.getDate() - current.getDay() +1;
var weekend = weekstart + 6; // end day is the first day + 6
var monday = new Date(current.setDate(weekstart));
var sunday = new Date(current.setDate(weekend));