Skills for a front end developer?

Question

What are the skill needed to become a front end developer? In what technologies he would be mastered?

Answer 1

My opinion is : Html, css, JavaScript, bootstrap, jquery & Angular js

Answer 2

A good mastery of HTML, CSS, JavaScript plus some knowledge about the available frameworks for each of the aforementioned languages will suffice.

Answer 3

not really "necessary", but learning it could help you a lot in both practicality and efficiency.