Code Readability

This characteristic refers to how easily a person can read, understand, and work with the script. The more difficult its readability, the more straightforward or less complicated it is. It can help developers maintain, update, and debug their applications. 

Code readability is the key because it uses some unique aspects. These aspects include the project’s maintainability, collaboration, and bug detection. All of them can help other programmers understand what you have done. By doing so, you can quickly grasp what the code does and make changes easily. The rule of thumb in this matter is that “code is read more often than it is written.”

How do you increase code readability?

Focusing on clarity and organisation can increase code readability. It can be done by paying attention to meaningful names, consistent formatting, and modular design. These methods are divided into different steps. If you master all of them, it will become one of the most valuable habits you can develop as a programmer. It helps you achieve clear and concise code, allowing other developers to collaborate with you.

Using these techniques can help you prevent small mistakes from happening. For example, clear logic can help you spot it before it becomes a problem. It is better for you to do reviews during pull requests. It gives you a chance to review the code’s clarity. For further explanation, here are the steps to make your script easier to read.

Descriptive naming

To increase your code readability, you need to be clear and ensure variables, functions, and classes have meaningful names to explain their purpose. In some cases, people will understand it better if you write it as calculate_total_price() instead of calc() or stop (). Always use descriptive and consistent naming conventions and avoid abbreviations unless they are widely known, like id or URL.

Consistent formatting

Another way to do it is to keep consistent formatting. It means you have to write consistent indentation, spacing, and line breaks. This way, it can help other programmers to keep up with the flow of your script. Some programming languages have official style guides, like PEP 8 for Python.

Clear comments

If you want to make a script with good code readability, you need to write clear comments. You should provide explanations about the reason behind decisions being made, especially for non-obvious logic. Although this method is preferable, you need to ensure you don’t use it too much. Also, avoid explaining self-explanatory things.

Small and modular functions

One way to ensure high code readability is to break the script into small, modular functions. Instead of writing long blocks of code, you can break them into smaller pieces based on functionality. It will make your script easier to understand, test, and reuse.

Avoid deeply nested structures

When you write too many layers of if, for, or while, it can be challenging because it becomes difficult for our logic to follow. For better code readability, you need to use early returns or separate logic into a helper function. Early returns cause the function to exit immediately when it meets the criteria.

Use whitespace

When the lines are close to each other, it can be confusing. It is harder for you and everyone else to read. However, adding blank lines between logic sections can help you organise your script and improve its code readability. Grouping related code provides ease and a clear understanding for the readers.

Don’t use “magic numbers”

A number like 3 in the middle of the script, without any context, can be confusing. Seemingly, it doesn’t have any meaning. That is why you need to add named constants in front of the number. It helps to tell readers what that number represents.