Presenter: Diana Ignat

JavaScript

• JavaScript is a programming language made for the web
• It can update and change both HTML and CSS
• Think about a website, it shows words, pictures, maybe videos. But what makes it do stuff when you click, tap or type? 

What is JavaScript?

• show messages when you click a button
• check if you typed your password correctly
• create games and quizzes 
• make fun animations and effects

What can JavaScript make websites do?

Real life examples

Online shopping

School portals

1. Open your browser
2. Right-click -> Inspect -> Go to Console tab
3. Type: alert("Hello! This is my first JavaScript command.");
4. Press Enter

See JavaScript in action

• JavaScript is a list of instructions for the computer
• The browser reads them top to bottom
• Each instruction tells it to do something: show a pop-up, do math, remember a value
• It's like writing steps in a recipe

What does JS code look like?

• A variable is like a box with a name
• It stores information for later
• You can put things in, take them out, or change them

Variables: how JS remembers stuff

let score = 0;  
score = score + 10;
alert(score);  

-> created the box

-> changed what's inside

-> displayed it