Summary - Node.js basics

Combine import, package.json and console.log to write your first Node.js program.

Summary - Node.js basics

In this group you saw the basics of Node.js: running files with the node command, writing output with console.log, sharing code with ES modules, managing projects with package.json and the difference between CommonJS and ESM.

Now there are two small tasks that bring these together. First a greeting message, then a two-line output.

Ready? Let us start.

Exercise Write a greeting

Write two console.log calls: the first prints Node.js is running, the second prints Version 22.

Show example solution

console.log("Node.js is running");
console.log("Version 22");

Exercise Two-line output

Assign the string "calculator" to a variable named app. Then call console.log with app; on the next line call console.log with "v1.0".

Show example solution

const app = "calculator";
console.log(app);
console.log("v1.0");

Test yourself

Program skeleton

____("Node.js ready");

Show answer

console.log("Node.js ready");

Match the section concepts

node

Run command
console.log

Output writing
import

ESM import
package.json

Project info

Next lesson: let and const

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