Foreword
No one can argue that AJAX was an important advancement in the evolution of the web. In a few short years, a single technology (XMLHttpRequest) revolutionized how users interacted with our content. Instead of loading entire pages, portions of the page could refresh with minimal distraction to the user. In a time when broadband wasn’t the norm, this change was amazingly powerful.
The web grew up during that time. The birth of AJAX catalyzed the transformation of “web pages” into “web apps,” but it also paved the way for modern client-side development. Today’s JavaScript frameworks, which launched single page apps (SPAs), were a result of this early paradigm shift. But as more code moved off the server and into the client, it was clear ...
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