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Presentation transcript:

Hello, world!

HTML is all about displaying content HTML is all about displaying content. CSS is all about making content look good. Between the both of them, you can create some pretty nifty looking sites.

What you can’t do using just HTML and CSS is provide interactivity What you can’t do using just HTML and CSS is provide interactivity. That’s a problem. This means you can’t have...

Without interactivity, so much of the internet just won’t work Without interactivity, so much of the internet just won’t work. This interactivity is provided by JavaScript.

What exactly is a program?

JavaScript (commonly shortened to just JS) is a programming language made up of English-looking words arranged in a particular way to tell your browser to do something.

What JavaScript Looks Like var defaultName = "JavaScript"; function sayHello(name) { if (name === null) { alert("Hello, " + defaultName + "!"); } else { alert("Hello, " + name + "!"); } Btw: Don’t worry if none of this makes sense yet!