There are two way to check.first is you can directly check whether key contain A or not in binding like this:-. but i think this is not the better way so instead of this you can use ko.computed to check.
Check for operating system information in Windows 7. 1  Click the Start button , enter Computer in the search box, right-click Computer, and then click Properties. 2  Look under Windows edition for the version and edition of Windows that your PC is running.
The 32-bit version of Office is installed by default. Even if your computer is running a 64-bit version of Windows, we recommend that you install the 32-bit version of Office because it is more compatible with the applications and add-ins that work with Office.he Microsoft Office Click-to-Run service is installed on your computer. Once Click-to-Run is finished streaming Microsoft Office programs to your computer, Office is also completely installed on your computer and available when you are offline.