Preface

Some applications just get it right. These are the exceptions rather than the rule. Lots of JavaScript applications get one or two things right, and other things very wrong. The things we get wrong are a side effect of the scaling influencers that we never considered. This is a book about scaling our frontend architectures to meet the quality requirements asked of us. Scaling JavaScript applications is an interesting and fun problem. There're so many moving parts—the users, the developers, the deployment environments, the browser environments, and the task of bringing all of these factors together to form a meaningful user experience. What are we scaling, and why? The aim of this book is to help us answer these questions.