16 Tips For Writing Cleaner Code In Any Programming Language

by | Jul 23, 2022

Nobody likes to continue working on a task with destructive or chaotic code (it may be a nightmare at times…). Given time constraints, some engineers neglect developing clean coding whereas Experts Developers always focus that How to write Clean Code during their projects? 

They try to move quickly but instead end up going worse. It causes further errors, which they will have to solve later when they return to a similar code. This procedure takes far longer than the time spent developing the code. According to research, the proportion of time devoted to analyzing code to the period spent developing code seems to be well over 10 to 1.

“According to the study, about 18 percent of respondents had invested either one or four years developing code, with 0.28 percent having invested 50 years or above. In software development, designing clean code is a prevalent issue. But how does it really imply, as well as why should we care?”

We chatted with the Senior Developer Ambassador at AWS and fellow faculty colleagues at General Assembly’s Software Development Immersion to get answers to these issues. From 2015 until 2020, the overall gross income earned by the coding primary training market is shown. 

The North American coding camp segment is valued at producing 350 million dollars in revenue by 2020. Despite the worldwide COVID-19 epidemic, which drove many coding boot camps to go virtual, there was a rise from the prior year.

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What Does Clean Code Mean?

First and foremost, we must define clean code. In a nutshell, clean code is simple to read and modify.  Clean code means that another developer can read, comprehend, and readily extend.” “It’s code that numerous people may interact with, and that adheres to a set of rules that the organization has settled upon.”

how to write clean code

Duplicate code is not simply more difficult to comprehend than a clear and beautiful solution, however, it also increases the risk of mistakes.

Why it’s Important to Write Clean Code?

Writing clean code is important because Well-written and clean code are easily understandable and manageable by you or in future by any programmer. Proper documentation records of clean coding help to do any future changes.

Regardless your code is already functional, and you must consider the future. It will be far tougher to sustain, change, or expand the code mainly in the future unless it isn’t good to deal with.

There are some advantages of writing clean code.

  1. Maintenance is easier
  2. Bugs are easier to detect
  3. Different developers will find it easier to handle
  4. Easy to interpret by search engines
  5. It’s simpler to impress

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How to Know If Your Code Is Clean?

Let’s look at some features of clean as well as better code once we go into it…

  1. Code that is well-written should be comprehensible by developers. When anyone reads your code, people should experience it as though reading poems or literature.
  2. Elegant programming should be simple. It must be enjoyable to read and bring a grin to your face.
  3. Clean code must be straightforward and simple to comprehend. It must adhere to the single responsibility principle (SRP).
  4. Clean code must be simple to comprehend, alter, and maintain.
  5. All of the tests should indeed be performed with clean code.

16 Guidelines For Writing Clean Code

Designing clean code is a subjective thing. There have been some best practices, but it’s rare to find a set of guidelines that all developers agree on.

But, with that stated, we need to start somewhere. We want a little suggestion and guidance on how to write clean code. Use the following seven strategies to develop clean code.

how to write clean code

1- Use Names Having A Purpose

You’ll be naming variables, procedures, categories, parameters, packages, modules, subdirectories, and other things a lot. Consider it a practice to give your code descriptive names.

Whichever names you give to your code, they should serve three functions: what it performs, why it appears, and why it will be utilized. Use descriptive names for variables and functions. When you layout lengthy, descriptive variables and function titles, your code makes it significantly easier to understand.

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2- Create Small Functions That Do A Single Task

If services provider just designs one thing, they are easier to learn, read, and maintain. By developing small functions, it’s frequently easy to track out the root of the error. The code would be highly reusable as well.

3- Write Code That People Can Understand

When creating code, many individuals, especially novices, make the error of putting all in one line without using adequate whitespace, indent, or line spacing. Their code becomes clumsy and difficult to sustain as a result. There’s always the possibility that another person may discover your code and need to deal with it.

When all the fellow developers attempt to understand and comprehend the messy code, people waste their time. So constantly pay close attention to how your code is formatted. Create proper documentation for the code because future developers may understand what it does and why it does it.

4- To Make A Legible Code, Use Empty Lines

We may make our code more readable by using empty lines. The additional line would be useful for quickly identifying in which the functions terminate. We may also utilize an empty line to distinguish the declaration of the variable from the activity of the procedure. Lastly, if you like, we may add an additional line before the reported value.

5- A Function Should Not Have More Than Three Parameters

We always remember to create an accessible function. It’s simpler to understand the logic of three arguments within a program than to understand the logic of a number of variables and attempt to figure out where they’re utilized.

Whenever more than three parameters are required, we could pass one entity to the function and utilize the entity’s keys as needed.

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6- Remember That The Procedures Should Only Do One Task

I understand that we are often in a rush or would like to address our situation with a single function, so we build a function that performs many things. This should be avoided. A function must only do a single task. It is preferable to be having two or even more concise and straightforward functions than one complicated one.

7- Repetition of Codes

A code block that appears more than once in the code is referred to as repetitive code. This implies you’ll need to turn your code into a function.

how to write clean code

One of the essential name standards is this. To utilize make, obtain, or modify with the username if we require a CRUD function. The function’s naming could be user-Info, customer, or fetch User when we wish to acquire user information through the database. However, this is not the standard. GetUser must be used.

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8- Capitalize Fixed Values (SNAKE UPPER CASE)

This is another rule that we must observe. Constant identifiers should always be capitalized entirely. All the characters will indeed be uppercase, and then each of the words will be separated by an underscore.

9- Be Consistent 

Consistency is crucial while developing code. Without even a git attribution, no one must be capable of looking at a source code and knowing whoever produced every single line! Semicolons should be used at the conclusion of each expression in JavaScript. 

To begin, create a design guideline and a linter to follow these guidelines. Putting those in place saves time while creating code and ensures that your codebase is consistent. For JavaScript, experts suggest Standard JS, and for Python, PEP8. She’ll also set up her editor to save her work with these criteria in mind.

10- Encapsulation + Modularization

To make your code better reusable and comprehensible, group similar properties and functions together. Break up large programs into separate files to make your code more manageable, modular and easy to understand. 

Long files might be difficult to navigate, and you may wish to reuse tiny sections of code from task to task. To make your code better maintainable, group similar objects together.

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11- The DRY Principle

DRY–Don’t repeat yourself. One of the very first elements developers are trained in is this. “I believe it’s a pretty good principle for why we’re creating code during start place plus how we should think about it, “experts remarked. “We’re developing for coils and functions to avoid having to repeat the same code repetitively.”

However, too much use of the DRY principle might lead to excessive abstraction. Over abstraction is particularly typical among skilled coders. “However, it’s good to ask yourself early on, ‘Am I writing comparable code in eight different areas?’ If I am, I must consider how to turn it into a function.'”

12- Avoid Writing Unnecessary Comments

Developers frequently use the comment features to indicate the intent of a section in their own code or write code for their clients. While comments are really useful for illustrating what the code does, they also necessitate extra code upkeep. 

Code is moved about during development, if the statement persists in the same location, it might be a major issue. It can cause developers to get perplexed, and it can also cause them to become sidetracked by irrelevant remarks.

how to write clean code

13- Write Unit Test to Improve Code Quality

In development, writing unit tests is critical. It enables your code to be cleaner, better code quality, versatile, and easier to maintain. It gets easy to make code modifications and eliminate errors. 

Test-Driven Development (TDD) is a software development technique in which specifications are converted into particular test cases, and then the program is modified to pass additional tests.

14- Make Your Project Well Organized

This is a reasonably typical difficulty in software development: we create and remove a lot of files and folders in our projects, which can make it difficult for fellow developers to comprehend and work on them. We agree that you can’t create a flawless folder or file organization on the first day. 

However, as your project grows more extensive, you’ll need to pay more attention to the arrangement of individual folders, contents, and directories. A well-organized folder and file made everything apparent, making it easier to comprehend a comprehensive project, locate a particular folder, and perform modifications to it.

15- Single Responsibility Principle (SRP)

Most newcomers mistake writing a function that could still handle and accomplish practically any task (perform multiple tasks). It creates the code extra tricky for developers to understand, which causes issues whenever they seek to patch errors or locate code. So, while developing a function, keep these two factors in mind to keep it clean and simple to comprehend…

  • They need to be tiny.
  • They should just focus on one subject and do it effectively.

Each function must satisfy the single responsibility principle, as stated in the previous two sections. Additionally, your function does not have greater than three variables. More variables do more jobs, thus limiting your arguments to a minimum.

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16- Avoid Noise Words

Words that provide no extra data about the variables are referred to as noise words. They must be deleted since they are unnecessary. The following are some examples of commonly used noise words:

  • Info
  • The (prefix)
  • Data
  • Object
  • Variable
  • Manager

You may simply delete the Info and change the name to Users if the module is called UserInfo. It’s a no-brainer to use BookData alternatively of Book as the class name because a class holds data.

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Final Thoughts

Everyone does not always apply all of these ideas. However, they can still be useful recommendations for writing code that others can understand and modify in the future.

“As per the latest survey

According to the poll, the JavaScript programming languages population has over 13.8 million software developers since 2021, establishing it as the world’s top prevalent programming language. Having 10.1 million developers, Python is also a popular programming language.”

She stressed the need to at least start with an automated linter or code formatter. “I believe that’s the simplest win,” she stated. That is why it’s performed with you every moment you submit your code. So don’t even need to consider it.

FAQs

What are the advantages of clean code?

Clean code is vital because it helps you to communicate effectively with the subsequent person who will be working with your code. It’s critical, particularly in the software development environment, to be capable of referring to formerly written code and comprehending what it does.

How does clean code appear?

Clean code has the following characteristics:
Focus is on clean code —Every function, module, and unit reveals a single-minded mentality that is unaffected by the underlying vital elements. Clean code is maintained. Someone has gone to great lengths to make everything simple and organized.

What does “code smells” mean?

A code smell is any trait in a system or a network that may signal a deeper issue in computer programming. The definition of a code smell is arbitrary and varies depending on the language, developer, and development approach.

What is the meaning of the term “spaghetti code”?

While it’s unclear when or who developed the word “spaghetti code,” by the late 1970s, it was utilized to characterize a tangled mass of code that lacked organization.

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