Traditionally, most tech companies followed a horizontal structure, where development, testing, and operations are separated into different departments. Since they are interdependent, every team can only work at the pace of the slowest team.
In recent years, however, we have seen a shift towards vertical teams. Vertical teams are formed based on project requirements, where each team is responsible for all stages of the process—from gathering requirements to deployment. This allows teams to take full ownership of the entire feature, as they become self-reliant and can move at their own pace. Consequently, many companies require their developers to command a broad skillset.
Therefore, this book is not just written for JavaScript developers who are eager to learn new tools, but for all developers who wish to stay relevant in today's job market.
