javascript - 如何将 "Saturday 9:00 PM"转换为日期对象？

Question

星期几和时间是我仅有的两个信息。如何使用 Date 或 moment.js 构造有效的日期对象(当前星期)？

我尝试了以下方法，但似乎不起作用:

moment('Saturday 9:00 PM').format()
// "Invalid date"

Answer 1

var date = 'Saturday 9:00 PM';
var days = [
    'Sunday',
    'Monday',
    'Tuesday',
    'Wednesday',
    'Thursday',
    'Friday',
    'Saturday'
];

var parts = date.split(/\s/);
var day   = days.indexOf(parts[0]);
var hours = Number(parts[1].match(/^(\d+)/)[1]);
var mins  = Number(parts[1].match(/:(\d+)/)[1]);
var AMPM  = parts[2];
if(AMPM == "PM" && hours<12) hours = hours+12;
if(AMPM == "AM" && hours==12) hours = hours-12;

var d    = new Date();
var dday = d.getDay();

d.setDate(d.getDate() + (day - dday));
d.setHours(hours);
d.setMinutes(mins);

FIDDLE