我希望以自定义排序方式显示对象属性的数组。以下是数组
$scope.weekDays = [
{
"day" : "TUESDAY",
"count": 10
},
{
"day" : "MONDAY",
"count": 20
},
{
"day" : "WEDNESDAY",
"count": 30
},
{
"day" : "SUNDAY",
"count": 60
}];
如果我们从weekDays
开始打印,那就像星期二,星期一,星期三,星期日
但我希望在订单中显示" SUNDAY","星期一","星期五","星期二",&#34 ;星期三"
为此我做了以下
$scope.orde = ["SUNDAY", "MONDAY", "FRIDAY", "TUESDAY","WEDNESDAY"];
$scope.Sorted = [];
$scope.SortCustomOrder = function() {
var _c =0;
for(var i = 0; i < $scope.orde.length; i++) {
for (var _i = 0; _i < $scope.weekDays.length; _i++) {
if($scope.weekDays[_i].day==$scope.orde[i]) {
$scope.Sorted[_c] = $scope.weekDays[_i];
_c++;
}
}
}
};
并打印$ scope.Sorted。它打印我说的。
有没有办法在angularjs中简单地使用这个或任何其他方法?
答案 0 :(得分:1)
您可以使用内置的orderBy
过滤器,如下所示:
app.controller('MainCtrl', function($scope, orderByFilter) {
$scope.weekDays = [{
"day": "TUESDAY",
"count": 10
}, {
"day": "MONDAY",
"count": 20
}, {
"day": "WEDNESDAY",
"count": 30
}, {
"day": "SUNDAY",
"count": 60
}];
var dateOrders = ["SUNDAY", "MONDAY", "FRIDAY", "TUESDAY", "WEDNESDAY"];
$scope.Sorted = orderByFilter($scope.weekDays, function(item) {
return dateOrders.indexOf(item.day);
});
});
示例Plunker: http://plnkr.co/edit/IZfiavmZEpHf4hILdjQs?p=preview
答案 1 :(得分:0)
我已经让你成为了一名
的职员$scope.weekDays = [
{
"id" : 3,
"day" : "TUESDAY",
"count": 10
},
{
"id" : 2,
"day" : "MONDAY",
"count": 20
},
{
"id" : 4,
"day" : "WEDNESDAY",
"count": 30
},
{
"id" : 1,
"day" : "SUNDAY",
"count": 60
}];
$scope.orderedWeekDays = $filter('orderBy')($scope.weekDays, 'id')
答案 2 :(得分:0)
嗯,对于所有这样的排序和过滤操作,我通常会选择任何可用的库..
我强烈推荐这个:http://jscriptlinq.codeplex.com/ ..
对您的收藏品进行排序非常简单:
var arr = [{id: 'a', pos: 5},
{id: 'd', pos: 2},
{id: 'b', pos: 4},
{id: 'c', pos: 3},
{id: 'e', pos: 1}];
// col1 = ['e', 'd', 'c', 'b', 'a']
var col1 = $linq(arr)
.orderBy(function (x) { return x.pos; })
.select(function (x) { return x.id; })
.toArray();
// col2 = ['a', 'b', 'c', 'd', 'e']
var col2 = $linq(arr)
.orderBy("x => x.id")
.select("x => x.id")
.toArray();