Question 1

How to write a simple HTTP server in Go?

Accepted Answer

Use the net/http package from the standard library. Call http.HandleFunc to define routes and http.ListenAndServe to start the server. This makes building web APIs straightforward with minimal setup and no external dependencies.

Question 2

Go vs Node.js for backend development?

Accepted Answer

Go is better for CPU-intensive tasks and high concurrency due to its compiled nature and goroutines. Node.js excels in I/O-bound applications with its event-driven model. Choose Go for performance and reliability in microservices or network servers.

Question 3

What are the best practices for error handling in Go?

Accepted Answer

Always check errors explicitly using if err != nil. Use custom error types for better context and consider wrapping errors with fmt.Errorf. Avoid panics for regular error conditions to maintain program stability and clarity.

Question 4

How to use goroutines for parallel processing?

Accepted Answer

Define a function and call it with the 'go' keyword to run it concurrently. Use channels to communicate between goroutines and sync primitives like WaitGroups to coordinate. This enables efficient parallel execution without manual thread management.

Question 5

Is Go statically typed?

Accepted Answer

Yes, Go is statically typed with type inference, meaning variables have types determined at compile time. This catches errors early while keeping code readable, as you don't need to declare types explicitly everywhere.

Question 6

How to compile Go code for different platforms?

Accepted Answer

Use the GOOS and GOARCH environment variables or build tags. For example, run 'GOOS=linux GOARCH=amd64 go build' to compile for Linux. Go's toolchain makes cross-compilation easy, producing standalone binaries for various operating systems.

Question 7

Go or Rust for systems programming?

Accepted Answer

Go is better for productivity and concurrency with garbage collection, while Rust offers more control and safety with zero-cost abstractions. Choose Go for faster development and scalability, or Rust for performance-critical or memory-safe systems programming.

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