Typed Arrays are not the most exciting part of ECMAScript 6, but it is still good that they are part of the language now (vs. only a browser API). What surprised me while researching the post was how many browser APIs support Typed Arrays for binary data: File API, XMLHttpRequest, Fetch API, Canvas, WebSockets, WebGL, Web Audio API, and others.
(Disclaimer: I’m the author of the blog post.)