Console methods beyond log in Node.js - Mini Project: Build & Apply

Console Methods Beyond log in Node.js

📖 Scenario: You are building a simple Node.js script to help debug and display information in different ways using the console. Instead of just using console.log, you want to explore other console methods to show warnings, errors, and grouped messages.

🎯 Goal: Build a Node.js script that uses console.warn, console.error, console.group, and console.groupEnd methods to organize and display messages clearly in the terminal.

📋 What You'll Learn

Create a variable called user with the exact object: { name: 'Alice', age: 30, role: 'admin' }

Create a variable called threshold and set it to 25

Use console.warn to show a warning if user.age is less than threshold

Use console.group and console.groupEnd to group messages about the user object

Use console.error to show an error message if user.role is not 'admin'

💡 Why This Matters

🌍 Real World

Developers use different console methods to make debugging easier and to separate warnings, errors, and info messages clearly in the terminal.

💼 Career

Knowing how to use console methods beyond log helps in debugging Node.js applications effectively, a key skill for backend developers.

1

Create the user object

Create a variable called user and assign it the object { name: 'Alice', age: 30, role: 'admin' } exactly.

Node.js

// Create the user object
// Your code here

Need a hint?

Use const to create the user object with the exact keys and values.

2

Set the age threshold

Create a variable called threshold and set it to the number 25.

Node.js

const user = { name: 'Alice', age: 30, role: 'admin' };
// Create the threshold variable
// Your code here

Need a hint?

Use const threshold = 25; to set the age limit.

3

Show a warning if user is younger than threshold

Write an if statement that uses console.warn to show the message 'User is younger than threshold' if user.age is less than threshold.

Node.js

const user = { name: 'Alice', age: 30, role: 'admin' };
const threshold = 25;
// Add if statement with console.warn
// Your code here

Need a hint?

Use if (user.age < threshold) and inside it call console.warn with the exact message.

4

Group user info and show error if role is not admin

Use console.group('User Info') to start a group, then use console.log to show user.name and user.age. Use console.error to show 'User role is not admin' if user.role is not 'admin'. Finally, close the group with console.groupEnd().

Node.js

const user = { name: 'Alice', age: 30, role: 'admin' };
const threshold = 25;
if (user.age < threshold) {
    console.warn('User is younger than threshold');
}
// Add console.group, console.log, console.error, and console.groupEnd
// Your code here

Need a hint?

Use console.group and console.groupEnd to group messages. Inside, log the name and age, and use console.error if the role is not 'admin'.