December 2013
Intermediate to advanced
256 pages
6h 56m
English
Content preview from Quality Code: Software Testing Principles, Practices, and PatternsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 15. Legacy JavaScript
Michael Feathers defines legacy code as code without tests [WEwLC]. JavaScript and other dynamic languages benefit from tests by exercising a wider range of the dynamic behaviors that sometimes make them behave in unanticipated ways. Open-source projects benefit from tests so that multiple contributors can make changes without each having to be intimately familiar with all behaviors.
In contrast, open-source JavaScript projects without tests survive through simplicity or a small number of immersed maintainers, and often both. Increasingly, open-source JavaScript projects include tests, but some very useful and popular projects remain without them.
The jQuery Timepicker Addon1 by Trent Richardson is one such project. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.