RivoCode

Node.js Fundamentals · Modules & npm · Lesson 5 of 13

Installing Packages with npm

Concept

Installing Packages with npm

npm install adds third-party packages to your project, tracked in package.json and stored in node_modules.

By the end of this lesson
  • Explain the core idea behind Installing Packages with npm.
  • Predict output before running a change.
  • Test one realistic and one unusual input.
  • Use the result to make the next decision.
How to study this page
  1. 1. Read one concept.
  2. 2. Change the example.
  3. 3. Run, compare, and explain.
  4. 4. Complete the challenge below.
ExampleRunnable
{
  "dependencies": {
    "express": "^4.18.0"
  }
}
Try it Yourself »
Self-check before continuing

Without looking at the example, describe what changes when you modify one input in Installing Packages with npm. Then reopen the editor and prove your explanation with a small test.

You are ready to continue when you can predict, test, and explain the result.

Your turn

Look up one npm package you would like to use in a project and note what it does.

Loading editor…

Console

Output will appear here...