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Legend has it that back in the day, Netscape Navigator and Internet Explorer had different, incompatible ways of propagating events to multiple handlers; Netscape “captured” while Internet Explorer “bubbled.” So the W3C decided to standardize both behaviors when they createdaddEventListener, which can be configured to use either model. Let’s take a look at how these models play into the “event delegation” model used by modern web frameworks. Suppose you have this HTML structure: <body> <p> <a><span>Hello</span></a> </p> </body> If we add a “click” event listener to the A, we’d expect it to fire when the user clicks the SPAN. We’d also expect clicking on theRead More →

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Oliver Thylmann     (Originally published on YNOT) Some of you might have read my general statistics article from the February 22, 2001 edition of YNOT News. This time I’ll go deeper into the general use of referrers, the feature telling you where your visitors come from. Referrers are one of the most valuable resource in any stats package, most easily exploited, and at the same time, underused. I will leave out domain referrers, which may tell you, for example, that you are getting a lot of hits from some free host, where you are in the webmaster help section, and from there where youRead More →