JavaScript Basics
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Console Output
Topic Overview
Take your time to understand each concept. Practice with the examples below!
The console is like a message board where your program can display information. It's incredibly useful for understanding what your code is doing!
console.log() is your main tool for printing messages:
- •Basic text output:
console.log("Hello World");This prints: Hello World
- •Showing variable values:
let score = 100;console.log(score);This prints: 100
- •Combining text and variables:
let name = "Sarah";console.log("Welcome,", name);This prints: Welcome, Sarah
- •Using template literals (the modern way):
let age = 25;console.log(`I am ${age} years old`);This prints: I am 25 years old
Why use console.log()?
- •Check if your variables contain the right values
- •See if your code is running in the right order
- •Debug problems (find out where things go wrong)
- •Learn how JavaScript works by seeing results instantly!
Pro tip: You'll use console.log() constantly while learning - it's like having X-ray vision for your code!
Ready to practice? Try the exercise below to reinforce your learning!
Try it yourself
Create a variable with your favorite color and output it using console.log().
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