javascript OrderBy 日期值，它只是 Angular JS 中的字符串
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OrderBy Date values, which are just strings in Angular JS
提问by
I'm trying to order some data by date, although the dates are just strings, in the format dd-mm-yyyy.
我正在尝试按日期排序一些数据，尽管日期只是字符串，格式为 dd-mm-yyyy。
I made a filter which converted the plain string of numbers (which where in the US date format, where I wanted the UK date format) e.g 01272012 to 27-01-2014, but when I try to order them it still only sees them as numeric strings, so 01-01-1990 would come before 02-01-2014.
我制作了一个过滤器，可以将纯数字字符串（在美国日期格式中，我想要英国日期格式的地方）例如 01272012 转换为 27-01-2014，但是当我尝试订购它们时，它仍然只将它们视为数字字符串，所以 01-01-1990 会在 02-01-2014 之前出现。
Any suggestions of how to do this in a filter?
有关如何在过滤器中执行此操作的任何建议？
Thanks!
谢谢！
Update
更新
I figured out the dates would automatically get orderedif the date format was yyyy-mm-dd. I then used used orderBy:['date']to order the data, only using my original filter when displaying the data.
我发现如果日期格式是 yyyy-mm-dd，日期会自动排序。然后我习惯于orderBy:['date']对数据进行排序，仅在显示数据时使用我原来的过滤器。
I ended up having to reverse my data, showing the most recent dates. To achieve this I added a -to my orderBy statment: orderBy:['-date'].
我最终不得不反转我的数据，显示最近的日期。要做到这一点，我添加一个-到我的排序依据statment： orderBy:['-date']。
回答by David Bohunek
Because orderByfilter, you can use that.
Your ng-repear would probably look similar to this:
因为orderBy过滤器，你可以使用它。您的 ng-repear 可能类似于：
ng-repeat="item in items | orderBy: orderByDate"
and then on your controller you would define the orderByDatefunction:
然后在您的控制器上定义orderByDate函数：
$scope.orderByDate = function(item) {
var parts = item.dateString.split('-');
var date = new Date(parseInt(parts[2],
parseInt(parts[1]),
parseInt(parts[0]));
return date;
};
Implementation of the function is up to you. I choose to create Datefrom the string. The object you return from orderByDatefunction is then used to be order with using <, =, > operators.
该功能的实现取决于您。我选择Date从字符串创建。然后，您从orderByDate函数返回的对象将使用 <、=、> 运算符进行排序。
EDIT:solution for :reverse
编辑：解决方案:reverse
Since :reversecan't be used with a function passed as parameter, you can implement your custom function to return reversed value itself. In such case using Dateis not possible, I would construct a number then and returned it with minus:
由于:reverse不能与作为参数传递的函数一起使用，您可以实现自定义函数以返回反向值本身。在这种情况下使用Date是不可能的，我会构造一个数字然后用减号返回它：
$scope.orderByDate = function(item) {
var parts = item.dateString.split('-');
var number = parseInt(parts[2] + parts[1] + parts[0]);
return -number;
};
回答by Archana
var now = Date.now(); now = $filter('date')(now, 'yyyy-MM-ddThh:mm:ss+hh:mm');
var now = Date.now(); now = $filter('date')(now, 'yyyy-MM-ddThh:mm:ss+hh:mm');
Then you can data filtering with corresponding formatted date
然后您可以使用相应的格式化日期进行数据过滤
