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QUESTION
I'm new in fullstack developing and I'm trying to do a function, in a REST API firebase project, that could filter my collection post by a friend list (gived as a sting with usernames separated by comma, ex:"user1,user2,user3"). After resolve, it gaves me an empty array but I've checked that all the data are correct. What can I do?
...ANSWER
Answered 2020-Dec-11 at 21:56You're returning the posts array without waiting for it to be populated first.
The db operations you're making are asynchronous, meaning when they complete the respective .then()
block is executed; but the code below is executed right away.
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