The query every backend developer has needed and nobody enjoys writing In March 2016, npm removed an 11-line package called left-pad. Within minutes, builds began failing across the JavaScript ecosystem. It broke thousands of projects, including tools like Babel. Many developers didn't choose left-pad directly; it was hidden in their dependencies and went unnoticed until it vanished. That incident points at a question you have probably asked about your own stack: what is actually in my de...