Engineering Blog

                            

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Avoid any Type in TS (anti-pattern)

What are types in TS? Types in TS helps us understand what methods & properties are associated with a given value/variable in a program that can help us analyze our code for existing errors and prevent further errors. For example a value that is assigned a type of a string tells us that the value…

Variable Shadowing in Go

As a part of this blog post, I will try to explain about variable shadowing and how to avoid it. In programming, scope of variable defines to the places a variable can be referenced. In Golang, a variable name declared in a block can be redeclared in an inner block. This mechanism is called variable shadowing….

Interface on producer side

Interfaces are used to create common abstractions that multiple objects can implement. Before delving into this topic, let’s make sure the terms we use throughout this section are clear: It’s common to see developers creating interfaces on the producer side, alongside the concrete implementation. But in Go, in most cases, this is not what we…

Unnecessary nested code

Readable code requires less cognitive effort to maintain a mental model; hence, it is easier to read and maintain. A critical aspect of readability is the number of nested levels. Code is qualified as readable based on multiple criteria such as naming, consistency, formatting, and so forth. While programming, we need to maintain mental models…

Misuse of Init Function in Golang

What is init function? An init function is a function used to initialize the state of an application. It takes no arguments and returns no result( a func() function). When a package is initialized, all the constant and variable declarations in the package are evaluated. Then, the init functions are executed. Init Function Example Misuse…

Interface Pollution in Golang

Interfaces are one of the cornerstones of the Go language when designing and structuring our code. However, like many tools or concepts, abusing them is generally not a good idea. Interface pollution is about overwhelming our code with unnecessary abstractions, making it harder to understand. So, first we understand the concept of interface and then…

Not being aware of the possible problem of type embedding

Concept of embedded field A struct field without a name is known as embedded field. For example :- In the Employee struct, the Address type is declared without an associated name; hence, it’s an embedded field. But this can sometimes lead to unexpected behaviors if we don’t understand all the implications of type embedding. Note…

Being confused about when to use generics

Introduction The Go 1.18 release introduced a new feature called generic types (commonly known by the shorter term, generics). This allows writing code with types that can be specified later and instantiated when needed. However, it can be confusing about when to use generics and when not to. In this blog, I will try to describe the concept…