javascript - 将字符串转换为 JS 日期

Question

我正在尝试将字符串值转换为 JavaScript 日期格式，但我似乎没有找到一种简单的方法来做到这一点，而无需使用其他库(例如 datejs)

var dateString = "20131120";
    var date       = new Date(dateString);
console.log(date);
     // I need to add an additional day to the original string
    var newDate    = date.getFullYear() + '-' + (date.getMonth()+1) + '-' + (date.getDate()+1);
console.log(newDate);

非常感谢任何提示。

Answer 1

你能试试这个代码吗

 var dateString  = "20131120";
    var year        = dateString.substring(0,4);
    var month       = dateString.substring(4,6);
    var day         = dateString.substring(6,8);
    var date        = new Date(year, month-1, day);

这里只是使用了简单的子字符串方法

First (0,4) will extract the year then next two is for month and next two is for day of month

  NOTE:
    Here we doing  `month-1` because it will count from 0 e.g (january==0).

希望对你有帮助