If your JavaScript is a mess frameworks can only do so much to help. No matter what framework
compiles-to-JS language or library you use bugs and performance concerns will always be an
issue if the underlying quality of your JavaScript is poor. With this hands-on guide you'll
learn how test and refactor your existing code to help reduce complexity improve readability
and gain confidence in the codebase. Author Evan Burchard shows you how to identify areas of
bad code and then takes you through several refactoring methods for improving them. Techniques
range from renaming variables to applying principles of functional and object-oriented
programming. If you're motivated to write better JavaScript code either on the frontend or
backend this book is a must. Use refactoring to restructure existing code without changing
its behavior Learn the relationship between refactoring and quality Explore the many versions
of JavaScript in use today Create automated tests to confirm that your code works and find
bugs that slip through Learn how to refactor simple JavaScript structures functions and
objects Refactor your codebase by applying object-oriented and functional programming
principles Examine methods for refactoring asynchronous JavaScript
