How to Unit Test Private Functions in JavaScript — Philip Walton
Update: A lot of readers have commented or tweeted that I shouldn’t be unit testing private functions in the first place. Admittedly, this article is a little light on the why and mainly focuses on the how. To explain some of my rationale, I wrote a follow-up article: Why I Test Private Functions In JavaScript JavaScript’s closures provide an excellent way to make variables and functions private,
What No One Told You About Z-Index — Philip Walton
The problem with z-index is that very few people understand how it really works. It’s not complicated, but it if you’ve never taken the time to read its specification, there are almost certainly crucial aspects that you’re completely unaware of. Don’t believe me? Well, see if you can solve this problem: The ProblemIn the following HTML you have three <div> elements, and each <div> contains a singl
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