So let's get started!
Code refactoring is the process of restructuring existing software code without changing its external behavior. Code refactoring helps to improve the design structure and implementation while preserving the core functionality.
It is beneficial for:
Let’s look into some of the refactoring ideas to improve your software code quality.
Arrays contain a list of items, therefore, it's good practice to append “s” at the end of the array name. So whenever developers read a variable name they immediately understand that it must be an array.
For naming boolean variables it's better to use natural language.
The verb can be anything like get, push, fetch, compute and post. It can be kept self-descriptive.
Overall, the name of the function should describe the purpose of the function, class, or variables. So that the other developers can easily interpret its meaning.
So the required page can be quickly downloaded and the additional one being lazy loaded once the page becomes interactive. This helps to reduce the complexity of loading the page and improve the application performance.
The code splitting is supported by bundlers like Webpack and Browseify. You can create multiple bundles that are easy to dynamically load at run time.
While refactoring our first responsibility should be increasing the code readability and another one is code optimization. Although it seems awkward, in reality, the code that is easy to understand can be efficiently optimized. And in the future, it's super easy to maintain.
The code optimization includes the following things:
To refactor code you should have a good understanding of the code structure and its hierarchy. Therefore every time you refactor code, try to modularize the functions with shared logic or the functions that perform similar operations.
For example: If your set of functions has two or more similar functions such as add, subtract, multiplication, and division, we can easily group them into one Math module.
Does your error message describe the accurate reason behind the errors? If not, it's time to refactor it. The error message should assist the developer in determining the root cause of the error and also give the front-end user a better UI experience.
As a developer you should
Not only that, while error handling one should also care about the error messages. It must describe the exact reason for the error to the app user.
For example, if you are trying to log in to the application and your login attempts fail in such a case the app must give you a correct message that describes the exact reason for failure, rather than just saying “you can’t log in to the app”.Similarly, the error message should be simple to understand by the end-user.