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Refactoring TypeScript
Refactoring TypeScript

Refactoring TypeScript: Keeping your code healthy

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Key benefits

  • Learn all about refactoring - why it is important and how to do it
  • Discover easy ways to refactor code with examples
  • Explore techniques that can be applied to most other programming languages

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.

Who is this book 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.

What you will learn

  • Spot and fix common code smells to create code that is easier to read and understand
  • Discover ways to identify long methods and refactor them
  • Create objects that keep your code flexible, maintainable, and testable
  • Apply the Single Responsibility Principle to develop less-coupled code
  • Discover how to combine different refactoring techniques
  • Learn ways to solve the issues caused by overusing primitives
Estimated delivery fee Deliver to Turkey

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Product Details

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Publication date, Length, Edition, Language, ISBN-13
Publication date : Oct 18, 2019
Length: 120 pages
Edition : 1st
Language : English
ISBN-13 : 9781839218040
Languages :

What do you get with Print?

Product feature icon Instant access to your digital eBook copy whilst your Print order is Shipped
Product feature icon Paperback book shipped to your preferred address
Product feature icon Download this book in EPUB and PDF formats
Product feature icon Access this title in our online reader with advanced features
Product feature icon DRM FREE - Read whenever, wherever and however you want
Product feature icon AI Assistant (beta) to help accelerate your learning
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Estimated delivery fee Deliver to Turkey

Standard delivery 10 - 13 business days

$12.95

Premium delivery 3 - 6 business days

$34.95
(Includes tracking information)

Product Details

Publication date : Oct 18, 2019
Length: 120 pages
Edition : 1st
Language : English
ISBN-13 : 9781839218040
Languages :

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Frequently bought together


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Total $ 161.97
Learn TypeScript 3 by Building Web Applications
$47.99
Refactoring TypeScript
$69.99
Advanced TypeScript Programming Projects
$43.99
Total $ 161.97 Stars icon
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Table of Contents

10 Chapters
1. Introduction Chevron down icon Chevron up icon
2. Null Checks Everywhere! Chevron down icon Chevron up icon
3. Wordy Conditionals Chevron down icon Chevron up icon
4. Nested Conditionals Chevron down icon Chevron up icon
5. Primitive Overuse Chevron down icon Chevron up icon
6. Lengthy Method Signatures Chevron down icon Chevron up icon
7. Methods That Never End Chevron down icon Chevron up icon
8. Dumping Grounds Chevron down icon Chevron up icon
9. Messy Object Creation Chevron down icon Chevron up icon
10. Conclusion Chevron down icon Chevron up icon

Customer reviews

Rating distribution
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1
(1 Ratings)
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1 star 100%
mauricio Dec 03, 2020
Full star icon Empty star icon Empty star icon Empty star icon Empty star icon 1
really? second book from Packt ever and both are garbage, or even worse, the junior level of authors is incredibly, this is going directly to my bbq, I am impressed to be honest, they dont even write decent code, and they are just few pages, and repeat the same code 2 or 3 times!!, waste of paper, time, money, etc. dont make more garbage books or dedicate yourself to do other stuff, James Hickey and Marina Mosti, dont try to teach anytmore pls, you are making even worse programmers.you can laugh a lot by seeing the "expert" codes, not even aware of whatever linter tool, eslint, tslint or jshint, they use junior level code, plain and simple.never again with packt, see my photo, how they fill with garbage entire pages, it is like a magazine not even a book, and they waste a lot of space doing ridiculous stuff.
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Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

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Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

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Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

Economy: Can deliver to P. O. Boxes and private residences.
Trackable service with delivery to addresses in Australia only.
Delivery time ranges from 7-9 business days for VIC and 8-10 business days for Interstate metro
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Premium: Delivery to addresses in Australia only
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Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

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Premium: Delivery to most Asian addresses within 5-9 business days

Disclaimer:
All orders received before 5 PM U.K time would start printing from the next business day. So the estimated delivery times start from the next day as well. Orders received after 5 PM U.K time (in our internal systems) on a business day or anytime on the weekend will begin printing the second to next business day. For example, an order placed at 11 AM today will begin printing tomorrow, whereas an order placed at 9 PM tonight will begin printing the day after tomorrow.


Unfortunately, due to several restrictions, we are unable to ship to the following countries:

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List of EU27 countries: www.gov.uk/eu-eea:

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You can cancel any order within 1 hour of placing the order. Simply contact customercare@packt.com with your order details or payment transaction id. If your order has already started the shipment process, we will do our best to stop it. However, if it is already on the way to you then when you receive it, you can contact us at customercare@packt.com using the returns and refund process.

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Return Policy:

We want you to be happy with your purchase from Packtpub.com. We will not hassle you with returning print books to us. If the print book you receive from us is incorrect, damaged, doesn't work or is unacceptably late, please contact Customer Relations Team on customercare@packt.com with the order number and issue details as explained below:

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  4. Once Customer Care Team confirms that you will be refunded, you should receive the refund within 10 to 12 working days.
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On the off chance your printed book arrives damaged, with book material defect, contact our Customer Relation Team on customercare@packt.com within 14 days of receipt of the book with appropriate evidence of damage and we will work with you to secure a replacement copy, if necessary. Please note that each printed book you order from us is individually made by Packt's professional book-printing partner which is on a print-on-demand basis.

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Shipping Details

USA:

'

Economy: Delivery to most addresses in the US within 10-15 business days

Premium: Trackable Delivery to most addresses in the US within 3-8 business days

UK:

Economy: Delivery to most addresses in the U.K. within 7-9 business days.
Shipments are not trackable

Premium: Trackable delivery to most addresses in the U.K. within 3-4 business days!
Add one extra business day for deliveries to Northern Ireland and Scottish Highlands and islands

EU:

Premium: Trackable delivery to most EU destinations within 4-9 business days.

Australia:

Economy: Can deliver to P. O. Boxes and private residences.
Trackable service with delivery to addresses in Australia only.
Delivery time ranges from 7-9 business days for VIC and 8-10 business days for Interstate metro
Delivery time is up to 15 business days for remote areas of WA, NT & QLD.

Premium: Delivery to addresses in Australia only
Trackable delivery to most P. O. Boxes and private residences in Australia within 4-5 days based on the distance to a destination following dispatch.

India:

Premium: Delivery to most Indian addresses within 5-6 business days

Rest of the World:

Premium: Countries in the American continent: Trackable delivery to most countries within 4-7 business days

Asia:

Premium: Delivery to most Asian addresses within 5-9 business days

Disclaimer:
All orders received before 5 PM U.K time would start printing from the next business day. So the estimated delivery times start from the next day as well. Orders received after 5 PM U.K time (in our internal systems) on a business day or anytime on the weekend will begin printing the second to next business day. For example, an order placed at 11 AM today will begin printing tomorrow, whereas an order placed at 9 PM tonight will begin printing the day after tomorrow.


Unfortunately, due to several restrictions, we are unable to ship to the following countries:

  1. Afghanistan
  2. American Samoa
  3. Belarus
  4. Brunei Darussalam
  5. Central African Republic
  6. The Democratic Republic of Congo
  7. Eritrea
  8. Guinea-bissau
  9. Iran
  10. Lebanon
  11. Libiya Arab Jamahriya
  12. Somalia
  13. Sudan
  14. Russian Federation
  15. Syrian Arab Republic
  16. Ukraine
  17. Venezuela