Sorting the list of data is one of the most common tasks you may find yourself coding ever so often. This article explores a few techniques in Golang that should make the sorting of any data collection simple. — All programming languages often provide ready utils to sort collections due to the incredibly common nature of this task in solving coding assignments. Go is no different with its provision of the sort package for performing all possible sorting operations.

Timers and Tickers let you write code that executes in the future, once or repeatedly. — In this tutorial, we are going through timers & tickers in Go and how you can use them effectively within your own Go applications. Timers vs Tickers Timers — These are used for one-off tasks. It represents a single event in the future. You tell the timer how long you want to wait…

Unix signals are software interrupts that are sent to a program to indicate that some important event has occurred. The events can vary from user requests to illegal memory access errors. Some signals, such as the interrupt signal, indicate that a user has asked the program to do something, not in the usual control flow. — Dealing with the operating system signals is important for various use cases in applications. For example, we might want a server to gracefully shut down when it receives a SIGTERM, or a command-line tool to stop processing input if it receives a SIGINT. …

An enum group related constants together in one type. Enums are a powerful feature with a wide range of uses. However, in Go, they’re implemented quite differently than most other programming languages. — Note: Before you go any further, I expect you all have a beginner-level understanding of Go syntax and primitive types to understand the source-code. In this article, I will show you how to implement enums in Golang using a predeclared identified iota. Before proceeding with enums, let’s first understand what…

In Go, you can assign functions to variables, pass functions to functions, and even write functions that return functions. Functions are first-class — they work in all the places that integers, strings, and other types work. — Note: Before you go any further, I expect you all have a beginner-level understanding of Go syntax and primitive types to understand the source-code. Assigning functions to variables

Implementing basic CRUD operations with Go and MongoDB using the mongo-go-driver — In this article, I will show you how to perform basic create, read, update & delete (CRUD) operations on the MongoDB database using Go. I am using the official MongoDB Go Driver for implementing the said operations. Note: Before you go any further, I expect you all have a beginner…

Stack data structure using Golang — A stack is a linearly ordered data structure in which the addition of new elements — or the deletion of an existing element — always takes place at the same end. This means that the last element inserted would be the first one treated before moving on to the next…

Slices in Golang — In this article, we will go over the concept of a “slice” which is an important data structure used in Golang. A slice is a data structure that provides a way for you to work with — and manage collections of — data. Slices are built around the concept of…

Last week I was working with one of my assignments where I need to deal with Golang concurrency. I was working with some in-memory data which gets modified by concurrent user request. I need to take control over reading & write operations on this in-memory data. Here I am explaining…