- function ViewModel() {
- var self = this;
- self.numbers = ko.observableArray(["a", "b", "c", "d", "e"]);
-
- self.moveDown = function(number) {
- var i = self.numbers().indexOf(number);
- if (i < self.numbers().length - 1) {
- var rawNumbers = self.numbers();
- self.numbers.splice(i, 2, rawNumbers[i + 1], rawNumbers[i]);
- }
- }
- self.moveUp = function(number) {
- var i = self.numbers().indexOf(number);
- debugger;
- if (0 < i) {
- var rawNumbers = self.numbers();
- self.numbers.splice(i-1, 2, rawNumbers[i],rawNumbers[i - 1]);
- }
- }
- }
-
- var vm = new ViewModel();
- ko.applyBindings(vm);
Here is the link for running sample code.
https://jsfiddle.net/vivek1273/ggrLemd2/