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Design Facebook Chat Function

One of the most interesting parts of preparing system design interview is that you can get to know a lot of details about how existing systems are built.

To make the weekly post more helpful, I’d like to cover a wide range of topics. We’ve been talking about stuff like recommendation, ranking a lot in the past few weeks, this time I want to cover something different.

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The post is written by Gainlo - a platform that allows you to have mock interviews with employees from Google, Amazon etc..

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