Writing maintainable js code

Keep your code organized and modular. This means using appropriate design patterns, such as object-oriented programming or functional programming, and dividing your code into small, manageable chunks that each have a specific purpose.

Use descriptive and meaningful names for your variables, functions, and other code elements. This makes it easier for other people (or even yourself) to understand what your code is doing and how it works.

Write clear and concise comments to document your code. This can help others (or yourself) understand the purpose and behavior of your code, especially when the code itself is complex or difficult to understand.

Write tests for your code to ensure that it works as intended and to prevent regressions. This can help you catch bugs and other issues before they become a problem in production.

Follow best practices and coding standards. This can help you write code that is consistent, predictable, and easy to read and understand. There are many different coding standards and best practices that you can follow, so choose the ones that are most relevant to your project and team.