javascript - 添加日期以将当前日期设置为明天 - Javascript

Question

这个问题已经有答案了:

How to add days to Date? (55 个回答)

已关闭 8 年前。

大家好，提前感谢您的帮助。我在将 Javascript 日期代码从当前日期提前到明天的日期时遇到问题。我在之前的帖子中搜索过这里，但答案似乎不起作用。

<SCRIPT LANGUAGE="JavaScript">
// Get today's current date.
var now = new Date();

// Array list of days.
var days = new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday');

// Array list of months.
var months = new Array('January','February','March','April','May','June','July','August','September','October','November','December');

// Calculate the number of the current day in the week.
var date = ((now.getDate()<10) ? "0" : "")+ now.getDate();

// Calculate four digit year.
function fourdigits(number) {
    return (number < 1000) ? number + 1900 : number;
                            }

// Join it all together
today =  days[now.getDay()] + ", " +
     months[now.getMonth()] + " " +
     date + ", " +
     (fourdigits(now.getYear())) ;
</script>

+ 1 会在哪里？插入以使日期成为明天的日期？

Answer 1

now.setDate(now.getDate() + daysToAdd); 

应该可以解决问题。它甚至不是 jQuery，只是 Javascript。如果您将 1 添加到字符串末尾，请确保 now 仍被视为日期，并且尚未被重新分配给其他类型。

daysToAdd 是文字还是变量并不重要。两者都应该有效。

更具体地说，这应该有效:

<SCRIPT LANGUAGE="JavaScript">
// Get today's current date.
var now = new Date();
now.setDate(now.getDate() + 1);

// Array list of days.
var days = new Array('Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday');

// Array list of months.
var months = new Array('January','February','March','April','May','June','July','August','September','October','November','December');

// Calculate the number of the current day in the week.
var date = ((now.getDate()<10) ? "0" : "")+ now.getDate();

// Calculate four digit year.
function fourdigits(number) {
    return (number < 1000) ? number + 1900 : number;
                            }

// Join it all together
today =  days[now.getDay()] + ", " +
     months[now.getMonth()] + " " +
     date + ", " +
     (fourdigits(now.getYear())) ;
</script>