Install:
npm i -g nativescript
Create:
tns create <app_name> --ng
Run:
tns emulate ios
List all emulators:
xcrun simctl list
Run a different emulator:
tns emulate ios --device "iPad Air 2"
[NativeScript] Create new application and run emulator
原文：http://www.cnblogs.com/Answer1215/p/6391737.html