which language should i have to learn after html, css, js, bootstrap, jquery, angular js, php and mysql

Answer 1

Since you went the web dev path, I suggest node.js as an alternative back-end language.

Answer 2

If you know all these languages.
You are ready to develop stuff.
But if you want to learn more.
You can go for Java or C++ for Android.
Or you can also chose c# or game development.

Answer 3

Raj Chhatrala how about XML?