What Is JavaScript and Why Do I Need It?

✏️ JavaScript is a programming language that operates important features on many websites.

✏️ What is JavaScript
JavaScript is a programming language that can be used on webpages to implement anything from simple interactivity to complex computer programs that run within your browser. Some websites rely on JavaScript to be able to perform their tasks.

Chapters
0:00 What Is JavaScript
0:30 Java and Javascript are unrelated
1:20 Programs do everything
2:00 HTML, CSS and DHTML
4:35 Javascript
6:30 Why have javascript?
7:20 Security Implications

More Ask Leo!

#askleo #javascript #webpage

[askleonotenboom]

Mostly because you want the website you’re visiting to work as intended.

[roncaruso]

Thank you! I now know what Javascript is and why it is used. Excellent explanation.

[US_Joe]

Great episode Leo! I still don't understand how Java & Js are different. One is probably self contained and compiled, while the other rides on the back of Web, but aren't the actual language commands and functions the same? 👍👍👍

[ojas]

As for abuse, scammers use javascript to create popups that saturate your RAM / CPU, claiming your computer has been blocked. So if you want to see the Popups in Text Mode, without running the javascript, disable it for that site or the one that redirected to the Popup, a standard tactic used by baiters to obtain scammer Popup Numbers and have Fun calling them👍

[franciscohorna]

some javascript can be malicious as well