Author: tayyaba
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Why is Dart considered a good choice for front-end development?
Dart is considered a good choice for front-end development because it allows for fast compilation to JavaScript, making it suitable for web applications. Additionally, its strong type system and rich libraries enhance developer productivity. Responses should include mentions of performance benefits, ease of learning, and the ability to target multiple platforms from a single codebase.
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Can you differentiate between ‘const’ and ‘final’ in Dart?
In Dart, ‘final’ is used to declare a variable that can be set only once. ‘Const’ is used for compile-time constants, meaning the value is determined at compile-time and cannot be changed. Candidates should be able to explain scenarios where each would be used, emphasizing ‘const’ for compile-time constants and ‘final’ for run-time constants.
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How does Dart handle asynchronous programming?
Dart handles asynchronous programming using async and await keywords, along with Futures and Streams. These tools allow developers to write asynchronous code that is easy to read and maintain. Ideal responses should highlight the practical benefits of async and await, such as improved readability and non-blocking operations.
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What are some key features of Dart that make it suitable for modern app development?
Dart offers several features that make it suitable for modern app development, such as a rich standard library, strong typing, asynchronous programming, and the ability to compile to JavaScript. Look for candidates who can articulate how these features contribute to efficiency, performance, and developer productivity.
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Can you explain the concept of ‘null safety’ in Dart?
Null safety in Dart helps prevent errors that result from unintentional access to variables that are null. Dart’s null safety feature ensures that values can’t be null unless explicitly allowed. A strong candidate should mention how null safety enhances code reliability and helps in catching potential null errors at compile-time rather than runtime.
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What is Dart and what are some of its primary uses?
Dart is a programming language developed by Google. It is optimized for building mobile, desktop, server, and web applications. One of its primary uses is in developing mobile apps using the Flutter framework. Candidates should demonstrate an understanding of Dart’s versatility and its association with Flutter. Look for mentions of performance, ease of use, and…
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Internationalization Support
Flutter provides robust support for internationalization (i18n), making it easier to build apps that cater to a global audience by handling multiple languages and locales.
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Performance
Flutter apps are compiled to native ARM code, which can lead to high performance comparable to native applications, ensuring smooth animations and quick load times.
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Community and Ecosystem
Flutter has a rapidly growing community and a rich ecosystem of packages and plugins available through the Dart package manager, Pub, allowing easy integration of third-party tools.
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Material Design and Cupertino Widgets
Flutter includes built-in support for both Material Design (for Android) and Cupertino (for iOS), enabling developers to create apps that look native on both platforms.