Edited Typescript Code in Type Towel not reflected in corresponding js file

Edited Typescript Code in Type Towel not reflected in corresponding js file

I had Edited the Typescript code of home.ts in Type towel project
downloaded from following URL:
https://github.com/Svakinn/TypeTowel/trunk/TypeTowel
I had just added a new variable in view model and tried to display it on
my home page it does not reflect on home page. and also no reflected in
the corresponding js file.
I am sharing my view model
old viewmodel:
export class ViewModel {
title: string = 'Home View';
public activate() {
_logger.logger.log('We are home now', null, 'home', true);
return true;
}
}
export var vm = new ViewModel();
//The Durandal plugin-interface variables
export var activate = function () { return vm.activate(); };
new View model:
export class ViewModel {
title: string = 'Home View';
titleS: string = "my view";
public activate() {
_logger.logger.log('We are home now', null, 'home', true);
return true;
}
}
export var vm = new ViewModel();
//The Durandal plugin-interface variables
export var activate = function () { return vm.activate(); };
My Html line that I added to home.html is:
<span data-bind="text: vm.titleS"></span>
As I am new to type script please let me what is wrong that I am doing?