On Thursday, Google caught the eyes of Web developers around the world with the company's move to open source its Closure JavaScript compiler, library and template system to the Web community - the very same tools that power popular applications, including GMail, Google Docs, Google Maps, Google Reader, and no doubt many others. The Closure tools optimize Web code to be compact and high-performance, essentially reducing page load and redraw times while also enabling uncompromising capabilities. Around the Web, you could see the release elated geeks both inside and outside Google, many of whom previously worked with the tools while working for the Mountain View tech giant.
To better understand these tools, and get a real-world perspective on Closure, I reached out to Mihai Parparita, an engineer on the Google Reader team, to hear of his experience. He was gracious enough to extend a very thorough overview, explaining the tools' origin and use case, by e-mail, much of which is summarized below.