For something like this, I’d use a pipe to order the element.
import {Injectable, Pipe} from 'angular2/core';
import * as _ from 'lodash';
@Pipe({ name: 'order-by' })
export class OrderByPipe {
transform(array, args) {
return _.sortBy(array, args);
}
}
then you could use it like
<a ion-item *ngFor="#item of items | order-by:'value'">{{item.value</a>