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Node.js · Theory

Npm doctor command in Node.js

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Theory

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Npm doctor command in Node.js

Npm doctor command (in node js) is simple if you keep it on paper. Amit uses it for install express in a new folder.

Npm doctor command (in node js) on the board: npm init + npm i express. Then say what install express looks like after.

Npm doctor command (in node js) exists so Amit can keep install express correct in a new folder.

Amit ships Npm doctor command (in node js) in a new folder. That is the use case worth saying.

Npm doctor command (in node js) miss — deleting package-lock blindly. Fix it before you talk about advanced Node.js.

After Npm doctor command (in node js), Amit should still remember deleting package-lock blindly.

Close Npm doctor command (in node js) with: “If I skip it, install express goes wrong like this: deleting package-lock blindly.”

Exam tip

Board: install express. Dry-run Npm doctor command (in node js). Name the trap: deleting package-lock blindly.

Example

const pkg = {
  name: "demo",
  version: "1.0.0",
  scripts: { start: "node index.js" },
  dependencies: { express: "^4.19.0" },
};
console.log(pkg.name, Object.keys(pkg.dependencies));

Npm doctor command in Node.js — package.json declares scripts and dependencies that npm installs.

Short notes

  • DefNpm doctor command (in node js) — Amit uses it for install express in a new folder.
  • RuleNpm doctor command (in node js) → npm init + npm i express.
  • RememberNpm doctor command (in node js) + the event loop (a new folder).
  • UseNpm doctor command (in node js) in a new folder (install express).
  • TrapNpm doctor command (in node js) — deleting package-lock blindly.
  • ExNpm doctor command (in node js) → install express.

Questions

1

Amit asks: why does Npm doctor command (in node js) exist? Use install express.

2

When would Amit actually reach for Npm doctor command (in node js)?

3

Viva: one wrong answer people give for Npm doctor command (in node js).

4

Write the smallest Npm doctor command (in node js) step on install express. What happens?

Previous← NPM Diff Command in Node.jsNextqueueMicrotask() Method →
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