NativeScript for Mobile App Development NativeScript Fundamentals 1 — Questions and Answers
Question 1: What does NativeScript use to render UI components on iOS and Android?
- Native platform APIs directly (Correct answer)
- WebView with HTML/CSS
- React Native bridge
- Cordova plugins
Correct answer: Native platform APIs directly
NativeScript renders UI by calling native platform APIs directly, producing truly native UI without a WebView.
Question 2: Which runtime does NativeScript use to execute JavaScript on Android?
- V8 (Correct answer)
- JavaScriptCore
- SpiderMonkey
- Hermes
Correct answer: V8
NativeScript uses the V8 JavaScript engine on Android to execute application code.
Question 3: Which JavaScript engine powers NativeScript on iOS?
- JavaScriptCore (Correct answer)
- V8
- Hermes
- ChakraCore
Correct answer: JavaScriptCore
NativeScript uses JavaScriptCore on iOS because it is the engine provided by Apple's platform.
Question 4: Which command initializes a new NativeScript project?
- ns create (Correct answer)
- ns init
- ns new
- ns start
Correct answer: ns create
The `ns create` command scaffolds a new NativeScript application with the required project structure.
Question 5: What file serves as the entry point for a NativeScript application?
- app.ts / main.ts (Correct answer)
- index.html
- bootstrap.js
- launch.json
Correct answer: app.ts / main.ts
NativeScript applications bootstrap from app.ts (or main.ts), where the root module or component is registered.
Question 6: What is the role of the NativeScript CLI?
- Build, run, and debug NativeScript apps from the terminal (Correct answer)
- Manage cloud deployments only
- Generate native Xcode projects only
- Compile TypeScript to Java
Correct answer: Build, run, and debug NativeScript apps from the terminal
The NativeScript CLI (ns) provides commands to create, build, run, debug, and test NativeScript applications.
NativeScript for Mobile App Development NativeScript Fundamentals 1
What does NativeScript use to render UI components on iOS and Android?