Responsible JavaScript

While the performance of JavaScript engines in browsers have seen continued improvement, the amount of JavaScript served increases unabated. We need to use JavaScript more responsibly, which means we must rely on native browser features where prudent, use HTML and CSS when appropriate, and know when too much JavaScript is just that: Too much.

This presentation explores what happens to JavaScript performance and accessibility when devices are inundated with more JavaScript than they can handle. It also presents some modern techniques you can use to tailor delivery of scripts with respect to a person’s device capabilities and network connection quality. All this will help you create websites that are as fast as they are beautiful.

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