What is npm and what is package.json?
Model answer
npm is the package manager that installs libraries and runs scripts. package.json describes your project: name, version, dependencies, devDependencies and scripts such as "start" and "test". package-lock.json records the exact installed versions so installs are repeatable.
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What Is Node.js? Install It and Run Your First Script in the course Node.js and Express: Build a Back End API from Scratch.
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