Go (Golang) Interview: 200 Questions and Answers

The book "Go (Golang) Interview: 200 Questions and Answers" is a practical guide for developers who want to confidently pass a technical interview for a Junior, Middle, or Senior Go developer position. The book contains real questions asked in top IT companies: from syntax basics to advanced topics like goroutines, channels, garbage collection, and performance optimization.

Each question is accompanied by a detailed, structured answer with code examples, logic explanations, and indications of potential pitfalls. The book covers all key sections of the Go language, including:

• Data types, structures, interfaces, and generics
• Goroutines, channels, mutexes, and concurrency patterns
• Garbage collection, memory management, and profiling
• Error handling, panic, and recovery
• Testing, benchmarking, and documentation
• Working with packages, modules, and dependencies
• Standard library: HTTP, JSON, databases
• Architectural patterns and best practices in Go

The book will be useful for:

• Beginner developers — to systematize knowledge and fill gaps before their first interview.
• Experienced programmers — to recall details that are rarely used in daily work but are often asked in interviews.
• Team leads and mentors — to create a team preparation plan or conduct mock interviews.

The reader will learn:

• How to answer questions about concurrency to demonstrate a deep understanding of the Go model.
• What typical mistakes candidates make and how to avoid them.
• How to explain the workings of the garbage collector, scheduler, and interface mechanism.
• How to solve code review and design problems.

The question-and-answer format allows you to quickly find the desired topic and use the book as a cheat sheet before an interview. All code examples are written in current versions of Go (1.21+) and have been tested. The book does not replace a language textbook but is an ideal supplement for final interview preparation.

Regardless of your current level, this book will help you feel more confident in an interview and get an offer from your dream company.