Create IOS App with Cordova on Windows10
FYI,You can't install Xcode in windows. Xcode is designed and developed by Apple specifically for mac OS X.It doesn't mean that you can't use Xcode on windows.Check out below link, it should be a good starting point for you.
Hope this helps, Cheers!!!!
those docs are really old. Here's a link to the latest.
You can create multi-platform Cordova apps under Windows, but you'll need some virtualization software (or a separate OS X box) in order to specifically add the ios and osx platforms and run them in an emulator. The same is true if you want to create the various windows platform flavors on a Macintosh -- or if you want to create the Windows / Mac platforms on a Linux box.
The Visual Studio site has some more information on setup.
You can also use the PhoneGap Build Service to create the UWP/Android/iOS apps for you, and install them / test them directly on the appropriate devices. You can use "hydration" to push changes to the devices as you go. But I'm thinking that in the long run you might want to invest in a Mac for building / testing iOS -- it's easier to debug.