Recall & Review
beginner
What is Dart?
Dart is a programming language designed by Google. It is used to build mobile, desktop, server, and web apps. Flutter uses Dart to create fast and beautiful apps.
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beginner
What type of language is Dart?
Dart is an object-oriented, class-based language with C-style syntax. It supports both just-in-time (JIT) and ahead-of-time (AOT) compilation.
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intermediate
How does Dart handle null safety?
Dart has sound null safety, which means variables can’t be null unless you say they can. This helps avoid many common bugs related to null values.
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intermediate
What is a 'Future' in Dart?
A Future represents a value that will be available later, like the result of a network call. It helps write asynchronous code that doesn’t block the app.
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beginner
Why is Dart good for mobile app development?
Dart compiles to native code for fast performance. It also supports hot reload, which lets developers see changes instantly without restarting the app.
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Which company created Dart?
✗ Incorrect
Google designed Dart to build apps across multiple platforms.
What kind of syntax does Dart use?
✗ Incorrect
Dart uses C-style syntax with braces and semicolons.
What feature helps Dart avoid null errors?
✗ Incorrect
Null safety ensures variables can’t be null unless explicitly allowed.
What does a Future represent in Dart?
✗ Incorrect
A Future holds a value that will be available later, useful for async tasks.
What is a key benefit of Dart's hot reload?
✗ Incorrect
Hot reload lets developers see changes immediately, speeding up development.
Explain the main features of Dart that make it suitable for Flutter app development.
Think about language design and developer experience.
You got /5 concepts.
Describe how Dart handles asynchronous programming and why it is important for mobile apps.
Consider how apps stay responsive while waiting for data.
You got /5 concepts.