Programming language use by Google, Facebook, Instagram, YouTube, etc.

Programming language use by Google, Facebook, Instagram, YouTube, etc. 

Google uses Javascript and Typescript in front-end. In the backend part, Google uses Python, PHP, C, C++, Java, Node, Go

In the front-end part, Facebook uses Javascript, and the backend part, Facebook uses PHP, Python, C++, Java, XHP, Hack, Erlang, Haskell.

 In the front-end part, Instagram uses Javascript, NodeJS, and the backend part Instagram uses Python(Django Framework), Redies, Celery(Python), Rabbitmq.

In the front-end part, YouTube uses Javascript, and the backend-part Youtube uses C, C++, Python, Java, Go.

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