The Leanpub 60 Day 100% Happiness Guarantee
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms...
Kick off your book project in 2 hours, get started with GhostAI in 2 hours, or do both! Free live workshops, on Zoom. You’ll leave with a real book project and a clear plan to keep going. Saturday, June 27, 2026.
This book is no longer available for sale.
About the Book
In the fast-paced and ever-evolving field of front-end development, one of the biggest challenges is maintaining high-quality code while producing work rapidly. This is why testing has become so crucial. Deciding on the right testing approach and how to write and execute tests is a key issue every developer must consider. Code without tests is difficult to guarantee in terms of quality, and the solution lies in developing a solid testing strategy. This book shares the practical experience I ’ve accumulated in front-end testing, with the hope of inspiring and helping others.
About the Author
唐心皓(Summer)
工程師、講者以及作家,是技術部落格「Summer。桑莫。夏天」與《前端測試指南:策略與實踐》、《打造高速網站,從網站指標開始!全方位提升使用者體驗與流量的關鍵》的作者。擅長 SEO、前端效能與測試。
I’m Summer, an engineer, speaker, and writer, and the author of the technical blog "Summer" and the book "Frontend Testing Guide: Strategies and Practices" & "Speed Up Your App with Web Vitals". My expertise includes SEO, front-end performance, and testing.
Within 60 days of purchase you can get a 100% refund on any Leanpub purchase, in two clicks.
See full terms...
We pay 80% royalties on purchases of $7.99 or more, and 80% royalties minus a 50 cent flat fee on purchases between $0.99 and $7.98. You earn $8 on a $10 sale, and $16 on a $20 sale. So, if we sell 5000 non-refunded copies of your book for $20, you'll earn $80,000.
(Yes, some authors have already earned much more than that on Leanpub.)
In fact, authors have earned over $15 million writing, publishing and selling on Leanpub.
Learn more about writing on Leanpub
If you buy a Leanpub book, you get free updates for as long as the author updates the book! Many authors use Leanpub to publish their books in-progress, while they are writing them. All readers get free updates, regardless of when they bought the book or how much they paid (including free).
Most Leanpub books are available in PDF (for computers) and EPUB (for phones, tablets and Kindle). The formats that a book includes are shown at the top right corner of this page.
Finally, Leanpub books don't have any DRM copy-protection nonsense, so you can easily read them on any supported device.
Learn more about Leanpub's ebook formats and where to read them
You can use Leanpub to easily write, publish and sell in-progress and completed ebooks and online courses!
Leanpub is a powerful platform for serious authors, combining a simple, elegant writing and publishing workflow with a store focused on selling in-progress ebooks.
Leanpub is a magical typewriter for authors: just write in plain text, and to publish your ebook, just click a button. (Or, if you are producing your ebook your own way, you can even upload your own PDF and/or EPUB files and then publish with one click!) It really is that easy.