ko.observable(50); this.hanakoPoint = ko.observable(40); var data = [ {name: 'ଠ', value: this.taroPoint}, {name: 'ೋ', value: this.jiroPoint}, {name: 'Ֆࢠ', value: this.hanakoPoint} ]; var self = this; this.sortList = ko.computed(function() { return arraySortByValue(data); }, self, {name: true}); };