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Comprehending Golang Best Practices and it's Benefits

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What is Golang?

Golang was openly announced in November 2009, and the 1.0 version was released in March 2012. Go is the open-source programming language developed by Google developers and other contributors' combined effort. Best Practices of Golang clarify the process of software development, unusually for complex architecture and processes. The Go language ensures code efficiency, which transposes into faster software and apps for enterprises. Companies that identify the need for meaty and efficient code have selected Golang. Here are some essential firms that have done so: Rather than building from scratch, Go was formed based on the C language. Golang inherits C's disciplined syntax, albeit with some changes and feature enhancements that allow developers to manage memory safely. This helps to destroy the famous memory leakage issues when programmers do not publish unused memory by mistake.
The most use of golang is when an application needs to be scalable; there is one language that can perfectly fit the criteria, i.e., Golang Source: Microservices with Java and Golang 

What are the Benefits Of Using Golang?

Golang has some clear advantages over some of its established analogs.
  • Golang Is Fast

  1. It is a compiled language, which indicates the code written is directly transposed into formats that a processor understands. Meanwhile, Java's application is compiled into bytecode executed by the virtual machine.
  2. Reason of Golang as having a stronger organizational structure in business, where the need for mid-level administrators improves the speed of making things done.
  • Golang Is Easy To Learn

Choosing Go is easy for software developers, unusually if they already have a solid base in C or Java. While some keywords and syntax may slightly differ, Go has a very procedural process that programmers would familiarize themselves with within no time.
  • Golang Is Well-Scaled

  1. One of the causes you all ought to use Golang is its capacity to support concurrency. The Go language has Goroutines, which can run together and independently.
  2. Goroutines take up just two kB of memory, making it scalable during the need to run multiple concurrent methods, unlike Java threads blocking by variety, where Goroutines are non-blocking. Goroutines is the succession of the async process used by JavaScript and the traditional multithreading used by Java.
  3. Golang's Goroutines are the inverse of what Java's thread is, where the latter is a heavyweight that eats memory. Technically, users can run millions of GoRoutines without crashing or impacting the system. Having stronger and more popular software gives you an edge over your competitors.
  • General Programming Tools

As an open-source initiative, you'll have no problems getting the development tools for your team. There are many editors, IDEs, and plugins that you can download from the GitHub repository. Few cloud-based IDEs support Go are also available.
Click here to know Why Golang for Big data and Parallel Processing Applications?

What are the Best Practices for Golang?

Best Practices Golang developer must follow are given below.
  • Use gofmt

  1. Run gofmt on your code to automatically fix most manufacturing style issues. Almost all Go coders in the world use gofmt.
  2. gofmt command reads the go program, and it will give you the correctly arranged output after indentation, vertical alignment, and even it can reformat the comments.
Commands and Options
  1. gofmt filename:- It will print re-formatted code.
  2. gofmt -w filename:- this will reform every code and update the file.
  3. gofmt -r 'rule' filename:- Use the rewrite rule to the source before reformatting it.
  4. gofmt /path/to/ package:- This will format the whole package.
Here is the example for gofmt filename: demo.go package main import "fmt" // this is demo to format code // with gofmt command var xy int=10; var yx int=15; var zz string= “Welcome to Agira”; func print(){ fmt.Println("Value for xy,yx and zz is : "); fmt.Println(xy); fmt.Println((yx)); fmt.Println(zz); } Passing a Command: $gofmt demo.go Output: package main import "fmt" // this is demo to format code // with gofmt command var xy int = 10 var yx int = 15 var zz string = “Welcome to Agira” func print() { fmt.Println("Value for xy,yx and zz is : ") fmt.Println(xy) fmt.Println((yx)) fmt.Println(zz) }
One preliminary result from our recent survey is that 96% of users have now adopted Go modules (up from 90% a year ago). Source: The Go Blog

  • Error Message

An error message should not be capitalized (unless beginning with proper nouns or acronyms). For Example: Instead of this message fmt.Error ("Something went wrong") we can go with this error message fmt.Error ("something went wrong")
  • Handling Errors

Do not discard errors using _ variables. If a function returns an error, examine to make sure whether the function succeeded or not. Better, Handle the error and return it; otherwise, it will rise as a panic error when any unusual situation occurs. Don't use panic errors. Don't use panic for normal error handling. In that case, you can handle the error and multiple return values.
  • Avoid Repetition When Possible

Assume if you want to use structures in controllers and models. Create one common file, and there you can create the structures.
  • Variable Name Declaration

Variable names should be small rather than long. This is particularly true for local variables with limited scope. For Example -> Prefer `c` to `lineCount` Prefer `i` to `sliceIndex`
  • Document Your Code

  1. Package name, with the associated documentation before.// Package handler registers an HTTP handler at "/compile" that package handler
  2. Exported identifiers seem in godoc, and they should be documented correctly.
  • Comment Sentences

Comments documenting declarations should be full sentences, even if that seems a little unnecessary. That way gives them format properly when extracted into godoc documentation. Comments should start with the name of the object described and end in a period. Request represents a call to run a command. Request struct { ... // Encode writes the JSON encoding. func Encode() { ... and so on Comment Sentences

Summary

It's happened a while, inspired by a new programming language for the developer community. Golang, an excellent action by Google, the best practices of Golang is poised to help businesses of many applications. Turning over to Golang may be decisive in shaping your software strategy and delivery for the near destiny.

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