Interview question in go

 My Journey with Go

This blog is the result of my deep dive into Go after spending significant time working on various projects and solving real-world challenges. Throughout my journey, I’ve encountered both the simplicity and the depth of Go, from mastering its syntax to implementing advanced concurrency patterns. Go's design philosophy strikes a unique balance between being easy to learn yet powerful enough to build large, complex systems.

In today's era, technical interviews no longer focus solely on producing correct code but on understanding the underlying mechanisms and making efficient design choices. Employers and interviewers are more interested in how you approach problems, optimize for performance, and leverage tools like Generative AI to enhance productivity. It's not just about writing Go code but also understanding its internals—how goroutines work under the hood, how memory is managed, and how to write idiomatic code that scales.

This blog is my way of sharing those insights, gained from tackling real-world problems and delving into Go’s internals. Additionally, I’ll discuss how I’ve started integrating AI tools into my workflow, leveraging Generative AI to streamline coding tasks, perform code reviews, and explore innovative problem-solving techniques.

Question 1 : Why Golang you choose over other programming language or in simple term what is advantage you see in Golang over other programming language. (Important)

Answer:

Key Advantages of Go (Golang)

1. Concurrency Made Simple

   Go has native inbuilt concurrency mechanism and Go’s goroutines and channels provide a lightweight, efficient way to handle concurrency, making it easier to write scalable and concurrent programs. Unlike traditional threading models in languages like Java or Python, goroutines are highly efficient, allowing you to run thousands of them without significant overhead. This makes Go a top choice for building systems that require high levels of parallelism, such as web servers and cloud-native applications.

2. Efficient Memory Management

   Go includes an efficient garbage collector that automatically handles memory management, balancing performance with ease of use. Unlike languages like C++ where manual memory management can lead to bugs like memory leaks, Go takes care of this for you. At the same time, Go’s garbage collector is optimised to minimize pauses, ensuring that your applications run smoothly with minimal impact on performance.

3. Fast Compilation and Execution

   Go is a compiled language, which means it transforms code into machine-level binaries, resulting in faster execution times compared to interpreted languages like Python or Ruby. Additionally, Go's compilation is quick, even for large projects, providing both rapid development cycles and high runtime performance, making it ideal for performance-sensitive applications.

There might be more advantage you see in GenAI apps but these are major i feel that interviewer want to know. we will discuss more when we start coding how all above work.

Question 2: What is Data types in go and list all data types.

Answer:

Like most programming language Golang has following data types Basic types, composite, referenced and interface types.

Basics Types

Number

Integer : int8, int16, int32, int64, uint8, uint16, uint32, uint64

Float : float32, float64

Complex Number: complex64, complex128

Update will come soon.......