Refactoring TypeScript

Download or read book Refactoring TypeScript written by James Hickey and published by Packt Publishing Ltd. This book was released on 2019-10-18 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: Discover various techniques to develop maintainable code and keep it in shape. Key FeaturesLearn all about refactoring - why it is important and how to do itDiscover easy ways to refactor code with examplesExplore techniques that can be applied to most other programming languagesBook Description Refactoring improves your code without changing its behavior. With refactoring, the best approach is to apply small targeted changes to a codebase. Instead of doing a huge sweeping change to your code, refactoring is better as a long-term and continuous enterprise. Refactoring TypeScript explains how to spot bugs and remove them from your code. You’ll start by seeing how wordy conditionals, methods, and null checks make code unhealthy and unstable. Whether it is identifying messy nested conditionals or removing unnecessary methods, this book will show various techniques to avoid these pitfalls and write code that is easier to understand, maintain, and test. By the end of the book, you’ll have learned some of the main causes of unhealthy code, tips to identify them and techniques to address them. What you will learnSpot and fix common code smells to create code that is easier to read and understandDiscover ways to identify long methods and refactor themCreate objects that keep your code flexible, maintainable, and testableApply the Single Responsibility Principle to develop less-coupled codeDiscover how to combine different refactoring techniquesLearn ways to solve the issues caused by overusing primitivesWho this book is for This book is designed for programmers who are looking to explore various refactoring techniques to develop healthy and maintainable code. Some experience in JavaScript and TypeScript can help you easily grasp the concepts explained in this book.