jQuery，添加日期

Question

在我的Ruby on Rails應用程序中，我有一個用戶可以設置日期的字段。該字段值的格式如下：

$('#search_form_handover_date').val() 
#returns 
"15-07-2014 09:00" 

現在我怎樣才能例如添加到該日起3天，有： 「18-07-2014 09:00」

Answer 1

我的moment.js的忠實粉絲，如果你不介意使用第三方JS lib中，你可以做.....

// As the format you gave is non standard, you need to tell moment what it's getting 
var myTime = moment("15-07-2014 09:00", "DD-MM-YYYY HH:mm"); 

console.log(myTime.format('DD-MM-YYYY HH:mm')); 

var newTime = moment(myTime).add('3', 'days'); 

console.log(newTime.format('DD-MM-YYYY HH:mm')); 

Answer 2

嘗試類似下面如果您的日期字符串始終保持相同的格式，

var date = "15-07-2014 09:00"; 
var dateParts = (date.split(" ")[0]).split("-"); 
var timeParts = (date.split(" ")[1]).split(":"); 
var dateObj = new Date(dateParts[2],dateParts[1]-1,dateParts[0],timeParts[0],timeParts[1]); 
dateObj.setDate(dateObj.getDate()+3); 
console.log(dateObj) 

//If you don't use any library like Jquery datepicker, you have to use basic js operation to format the date (but not recommend) 

console.log(formateDate(dateObj)) 

function formateDate(DateObj) 
{ 
return addLeadingZeros(dateObj.getDate())+"-"+addLeadingZeros(dateObj.getMonth()+1)+"-"+dateObj.getFullYear()+" "+addLeadingZeros(dateObj.getHours())+":"+addLeadingZeros(dateObj.getMinutes()); 

} 

function addLeadingZeros(intArg) 
{ 
    return ('0' + intArg).slice(-2) 
}