Test-Driven JavaScript Development

Preface

Initially, all processing used to happen on the server's side and simple output was the response to web browsers. Nowadays, there are so many JavaScript frameworks and libraries that help readers to create charts, animations, simulations, and so on. By the time a project finishes or reaches a stable state, so much JavaScript code has already been written that changing and maintaining it further is tedious. At this point comes the importance of automated testing, and more specifically, developing all that code in a test-driven environment. Test-driven development is a methodology that makes testing the central part of the design process—before writing code, developers decide upon the conditions that code must meet to pass a test. The end ...