Poor article with poor code, and poor responses from the author in the article's own comments. The comment from 'isaacs' is better thought out than the article itself.

As isaacs points out, the first part of the article about "else if" is much ado about very little. And why the sideways hint that there is something wrong with "else if"?

The second part is lazy and inconsistent refactoring. Why go through the exercise of removing the <= 100 test and never notice that there's also a redundant <= 10 test in all three examples?

If you know JavaScript at all, this article is a waste of your time.