+ 2
In which languages facebook is written ????
4 Answers
+ 28
Front-end: Javascript.
Back-end: PHP, Hack, python, Haskell, Java, C++, Erlang, D, Xhp, SQL.
+ 10
Html and php
+ 1
Php, on 2007 i believe see facebook/index.php
+ 1
they are using "react" for frontend