Are most of the website on internet only uses Html, css and javascript to develop? Is there anything that i should learn?

Answer 1

You should also learn:

• JQuery (extension of JS)
• PHP (server-side)

Answer 2

That depends on what you're trying to achieve.

⏺️For any kind of website related works:
1.HTML
2.CSS
3.Javascript

knowledge on the above three is required as basic.

✨For web development: Start with HTML, and then move on to CSS, JavaScript, Python,jQuery,, and SQL.

Or

HTML,CSS, jQuery,SQL,PHP

or

Python3 and Django for building strong and very rich website ( flask is used for small website,but Django for everything)

✨For general application :
programming: Python, C++, and Ruby; then Java, C#, or Swift, based on the platform you're targeting.

➡️For details:
https://www.sololearn.com/FAQ

🔷Here is a very rich video, detailed (step by step) guidelines for starting online Career ( learning Web Development and other Programs):
⬇️⬇️⬇️
https://youtu.be/Zftx68K-1D4

🔼🔼Watch the above video attentively and then decide yourself.

For details:
https://www.sololearn.com/discuss/1062064/?ref=app