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Question: What is Goroutine in Go?
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Answer: The Goroutine is a lightweight thread managed by the Go runtime. It allows concurrent execution of functions.
Goroutines are more efficient than traditional threads, as they use less memory and can be multiplexed onto fewer OS threads.
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Question: Can you explain the difference between channels and goroutines in Go?
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Answer: The Goroutines are functions that run concurrently with other functions, while channels are the pipes
that allow communication and synchronization between goroutines.
Goroutines enable concurrent execution, and channels facilitate safe communication and data sharing between them.
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Question: How does error handling work in Go?
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Answer: In Go, error handling is done using the idiomatic approach of returning errors as the
last return value from functions. By convention, if a function can return an error, its last return type will be error.
Developers can then check for errors using if statements or utilize the errors package for creating custom error types.
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Question: What is the purpose of the 'defer' statement in Go?
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Answer: The 'defer' statement is used to schedule a function call to be
executed after the surrounding function returns.
It is commonly used for cleanup actions like closing files or releasing resources,
ensuring that they happen regardless of the function's execution path (e.g., normal return or panic).
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Question: How does Go manage memory?
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Answer: Go uses automatic memory management with a garbage collector.
It allocates memory for variables on the heap or the stack, depending on their size and lifetime.
The garbage collector periodically reclaims memory that is no longer in use, allowing developers
to focus on writing code without explicit memory management.
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Question: What are interfaces in Go?
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Answer: Interfaces in Go define a set of methods that a type must implement to be considered as implementing
that interface. Unlike traditional object-oriented languages, Go interfaces are implicitly satisfied, meaning
that a type implements an interface if it has methods matching the interface's method set.
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Question: Can you explain the difference between slices and arrays in Go?
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Answer: Arrays in Go have a fixed size determined at compile time, while slices are dynamic, flexible views into arrays.
Slices provide a more powerful and convenient interface to sequences of data, allowing for dynamic resizing and more expressive operations.
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Question: How does Go support concurrent programming?
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Answer: Go supports concurrent programming through goroutines and channels.
Goroutines allow for lightweight concurrent execution, and channels facilitate communication and synchronization between goroutines.
Additionally, Go provides synchronization primitives like mutexes and wait groups for more complex concurrency scenarios.
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