How 10 Major Companies Are Using JavaScript

Netflix

Like PayPal, Netflix started out using Java for just about everything. They too ran into problems with Java’s size and the time it required to develop.

Microsoft

PayPal

PayPal has obviously been using JavaScript on the front end of their website for a long time, but that’s only the beginning.

Uber

Uber needs to handle loads of data in real-time. They have millions of requests coming in continuously, and that does not just hit on a page. Uber needs to track driver locations, rider locations, and incoming ride requests. It has to seamlessly sort that data and match riders as fast as possible.

Facebook

Google

eBay

eBay’s story is a lot like Netflix’s. For a long time, just about everything in eBay’s tech stack was based on Java. A few years ago, eBay encountered a problem that Java wasn’t the right solution for. They decided to give NodeJS a shot instead.

Walmart

LinkedIn

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