Language Used [ Information ] Must check

Question

YouTube - JavaScript, C, C++, Python, Java, Go

Google - JavaScript, C, C++, Go, Java, Python

Yahoo - JavaScript, PHP

Amazon - JavaScript, Java, C++, Perl

Microsoft - JavaScript, ASP.NET

Wikipedia - JavaScript, PHP, Hack

eBay.com - JavaScript, Java, Scala

Pinterest - JavaScript, Django (Python), Erlang

MSN - JavaScript, ASP.NET

Twitter - JavaScript, C++, Java, Scala, Ruby On Rails

Facebook - JavaScript, Hack, PHP, Python, C++, Java, Erlang, Xhp, Haskell

Answer 1

JavaScript is the king.

Answer 2

Many kinds of javascript must have been used for the sites.

I decided to get Node.js recently.

I have not used it yet