从日期字符串中获取日期

Question

如何从JavaScript中的日期字符串获取日期？

Output:
2015-06-25 - Thursday
2015-07-10 - Friday

Answer 1

你可以试试这个：

var d = new Date("2015-06-25");
var weekday = [];
weekday[0] = "Sunday";
weekday[1] = "Monday";
weekday[2] = "Tuesday";
weekday[3] = "Wednesday";
weekday[4] = "Thursday";
weekday[5] = "Friday";
weekday[6] = "Saturday";

var day = weekday[d.getDay()]; // Wednesday

Answer 2

var dateParts = "2015-06-25".split('-');
(["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"])[new Date(dateParts[0], dateParts[1] - 1, dateParts[2], 0, 0, 0).getDay() - 1]

Answer 3

var daysOfTheWeek = ['Sun','Mon','Tues','Wed','Thu','Fri','Sat'];
var date = new Date("2015-06-25");
var day = daysOfTheWeek[ date.getDay() ];

Answer 4

getDay() - 方法返回星期几，表示为从0（Sunday）到6（Saturday）的整数。

function getWeekDay(dateString){
    var date = new Date(dateString);
    var weekdays = ['Sunday','Monday','Tuesday','Wednesday','Thursday','Friday','Saturday'];
                     ^                                       ^                   ^
               index 0                                       4                   6

    return weekdays[date.getDay()];
}        
getWeekDay("2015-06-25"); // calling getWeekDay method
// return day: Thursday