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How can you write code that is easy to read?

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Writing code that is easy to read is not only a courtesy for your fellow developers, but also a way to improve your own productivity and quality. When you write clear and consistent code, you can avoid bugs, errors, and confusion. You can also make your code more maintainable, reusable, and testable. In this article, you will learn some tips and best practices on how to write code that is easy to read in the context of application development.

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1 Choose a naming convention

One of the first steps to write readable code is to choose a naming convention for your variables, functions, classes, and files. A naming convention is a set of rules or guidelines that define how you name your code elements. For example, you can use camelCase, snake_case, or PascalCase to differentiate between different types of elements. You can also use descriptive and meaningful names that reflect the purpose and functionality of your code. Avoid using ambiguous, generic, or misleading names that can confuse yourself or others.

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Kennedy Gitahi

PHP (Laravel) Developer | JavaScript (Vue.js and Next.js) Developer. I build web applications that streamline processes, improve efficiency, and drive results including better brand visibility and improved conversion. .
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If you do use camelCase and the second word has two letters, always check they are both in the right case and that your font can differentiate them. For example, a variable containing the letters "i" and "l" can be problematic.

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2 Follow the indentation and formatting rules

Another important aspect of readable code is the indentation and formatting of your code blocks. Indentation and formatting are the ways you structure and align your code to make it more organized and visible. For example, you can use tabs or spaces to indent your code, and follow the standard rules of your programming language or framework for the placement of braces, parentheses, commas, and semicolons. You can also use blank lines and comments to separate and explain your code sections. Avoid using inconsistent or excessive indentation and formatting that can make your code messy or hard to follow.

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Kennedy Gitahi

PHP (Laravel) Developer | JavaScript (Vue.js and Next.js) Developer. I build web applications that streamline processes, improve efficiency, and drive results including better brand visibility and improved conversion. .
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In my experience, using a code editor like VS Code that allows you to set different conventions and then formats your code correctly on save is very helpful. The added benefit is that you do not have to spend any mental energy keeping track of the formating. Your code will always look neat and clean., and you will never have to debug a missing semicolon

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3 Use functions and modules to modularize your code

A third tip to write readable code is to use functions and modules to modularize your code. Modularizing your code means breaking it down into smaller and independent units that perform specific tasks or functions. For example, you can use functions to encapsulate your code logic and avoid repeating yourself. You can also use modules to group related functions and variables into separate files or packages. Modularizing your code can make it more readable, as you can focus on one unit at a time, and reuse or modify it easily.

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4 Write clear and concise comments

A fourth suggestion to write readable code is to write clear and concise comments. Comments are lines of text that you add to your code to explain or document what your code does or why you wrote it. For example, you can use comments to describe the inputs and outputs of your functions, the algorithms or logic behind your code, or the assumptions or limitations of your code. Comments can help you and others understand your code better, especially when it is complex or unfamiliar. However, avoid writing too many or too few comments, or comments that are vague or outdated.

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Kennedy Gitahi

PHP (Laravel) Developer | JavaScript (Vue.js and Next.js) Developer. I build web applications that streamline processes, improve efficiency, and drive results including better brand visibility and improved conversion. .
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Some developers argue that your code should be so self-explanatory as to not need comments. However, many argue it should be a happy medium where the code is self-explanatory, but includes comments in parts where it is not obvious what it does or where the developer needs to explain why they took the approach they did.

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5 Use tools and standards to enforce readability

A fifth recommendation to write readable code is to use tools and standards to enforce readability. Tools and standards are external resources that can help you check and improve the readability of your code. For example, you can use code editors or IDEs that have features like syntax highlighting, auto-completion, auto-formatting, or code analysis. You can also use code linters or formatters that can detect and fix syntax errors, style issues, or code smells. Additionally, you can use code standards or style guides that can provide you with best practices and conventions for your programming language or framework.

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6 Review and refactor your code regularly

A final tip to write readable code is to review and refactor your code regularly. Reviewing and refactoring your code means examining and improving your code quality and performance. For example, you can review your code by yourself or with others, using methods like code reviews, pair programming, or code walkthroughs. You can also refactor your code by applying techniques like renaming, simplifying, extracting, or replacing your code elements. Reviewing and refactoring your code can help you find and fix bugs, errors, or inefficiencies, and make your code more readable and reliable.

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7 Here’s what else to consider

This is a space to share examples, stories, or insights that don’t fit into any of the previous sections. What else would you like to add?

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How can you write code that is easy to read?

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1 Choose a naming convention

2 Follow the indentation and formatting rules

3 Use functions and modules to modularize your code

4 Write clear and concise comments

5 Use tools and standards to enforce readability

6 Review and refactor your code regularly

7 Here’s what else to consider

Application Development

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