javascript - 从 2015-08-01 获取来自日历的 Day "Thursday"

Question

friend 们，我有一个输入字段，我在其中显示了日期选择器日历，它正在显示并且工作正常。文本字段字段日期，如 2015-08-01。我想要这个日期，我也想从这个日期开始，比如“星期四”，我希望你明白我的意思。当我点击日历中的任何日期时，它会在输入字段中显示类似 2015-08-01 的日期，我使用更改并保存在变量中来获取此字段，然后我尝试从中获取日期但失败了。这是我尝试的代码

 var d = new Date();
 var n = String(d.getDay());
 alert(n);

还有这个

var d = new Date();
var days = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];
alert( days[d.getDay()] ) ;

Answer 1

尝试这段代码希望这有效HTML

<p>Date: <input type="text" id="datepicker"></p>

JavaScript

$( "#datepicker" ).datepicker( {
     onSelect: function(dateText, inst) {
        var date = $(this).val();
         var d = new Date(date+" UTC");
alert(days[d.getDay()]);
     }
    });
var days = ["Sunday","Monday","Tuesday","Wednesday","Thursday","Friday","Saturday"];

js fiddle Click