There is such array:
month: Array[13]0: "M"1: "January"2: "February"3: "March"4: "April"5: "May"6: "June"7: "July"8: "August"9: "September"10: "October"11: "November"12: "December"
I do:
ng-options="key as value for (key, value) in data.month | orderBy:key"
But I get unsorted select list.
In order to use tracking with filters use track by
.
Markup
ng-options="key as value for (key, value) in data.month | orderBy:'key' track by key"
Update
This orderBy
will never work because you are having literal array. You need to convert this array to JSON like object which would structured like [{id: 0, value: "M"}, {id: 1, value: "January"},......]
HTML
ng-options="item.id as item.value for items in data.month | orderBy:'id'"
Your missing two '
's. This part, orderBy: key
should be orderBy:'key'
Try this:
ng-options="key as value for (key, value) in data.month | orderBy: 'key'"
To resolve this issue need reformat ng-option
like as:
day.id as day.value for day in data.month
And array data.month
would be how as told user pankajparkar
来源:https://stackoverflow.com/questions/30621053/how-to-sort-array-in-ng-options-by-key