A key difference between the Lively Kernel and other systems in the same area is our focus on uniformity. Our goal is to build a platform using a minimum number of underlying technologies. This is in contrast with many current web technologies that utilize a diverse array of technologies such as HTML, CSS, DOM, JavaScript, PHP, XML, and so on. In the Lively Kernel we attempt to do as much as possible using a single technology: JavaScript. We have chosen JavaScript primarily because of its ubiquitous availability in the web browsers today and because of its syntactic similarity to other highly popular languages such as C, C++ and Java. However, we also want to leverage the dynamic aspects of JavaScript, especially the ability to modify applications at runtime. Such capabilities are an essential ingredient in building a malleable web programming environment that allows applications to be developed interactively and collaboratively.

a squeak for the web in js

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