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coding standard guidelines
Studies have shown that developers who use best practices when coding are up to 40% more productive than those who do not, and that code with good practices is up to 50% cheaper to maintain than code with poor practices.
Also, companies and governments lose a lot of money every day because developers don't follow the best practices and guidelines. Here are some examples you can read more about:
This lesson is a compilation of best practices that we promote at 4Geeks, it has been created and grown with contributions from all the community mentors.
It's best to avoid using global variables whenever possible, use more function arguments and return values to share data between different parts of a program. This can help you make code more maintainable, testable, and reliable.
Some of the naming conventions are given below:
snake_casefor Python, Ruby, etc. Here you can read more about variable naming conventions.
camelCasestarting with lower case.
Use Prettier or any automatic indentation tool. If that is not possible (for some weird reason), make sure to manually indent every single line:
When coding, some of the errors are hidden from developers unless exceptions are actively handled. For this reason, we decided to include this guideline in the list.
try-catchblocks to handle exceptions.
try-catchblock (if using promises) and show the error on the console.
Creating code that is easy to read is essential for producing high-quality software that is reliable, maintainable, and easy to modify or update. We have a whole article in code readability but here is a very short summary of the best practices:
When possible avoid using nested functions like:
The code is nested too deeply and has a complex structure that can be difficult to follow. This can be improved by refactoring the code to use fewer levels of nesting, or by using early returns or refactoring the conditional statements to simplify the structure. Here is an example: