What’s New in On-Demand Javascript? ScaleCamp Presentation

These are the slides from my ScaleCamp presentation, covering various techniques for various styles of On-Demand Javascript, including Script Islands, “async” and “defer” attributes, and library support.

One of the interesting things at ScaleCamp is that many of the folks there are dealing with third-party advertisers and analytics providers. This leads to very different on-demand Javascript drivers from those of us mostly dealing with enterprise web apps. If you’re a small fish in a big pond, you’re pretty much held hostage to the script tags of leading advertisers and trusted analytics companies in your industry; if they serve the script slowly, it blocks your page from loading and therefore messes with user experience. That’s why some of these new techniques are so critical, notably the dynamic async script tag technique the Google Analytics came out with at a very timely moment, just a couple of days before this presentation.

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