Adding database results to array of objects in React Native

Question

I have been working on this for a while now and I cannot seems to find a good/proper way to add objects coming from a DB query to an array holding objects. Please note I am developing a React Native Expo application.

This is basically the code that I have

  var arr = [];

firebase.firestore().collection('Something').where("text", "==" , "text").get().then((querySnapshot) =>{
    querySnapshot.forEach((doc) =>{
      arr += doc.data();
    })
})

The idea here is to have arr populated with the object result of doc.data(). I have looked at a million (if felt like it) tutorials, but I cannot seems to figure out the proper and correct way to populate my array.

Thank you for the help

Bruno Ribarić · Accepted Answer · 2020-04-21 21:27:33Z

2

If I understood correctly, doc.data() returns objects and you want to populate the array with those objects?

If that is so, try replacing arr += doc.data(); with arr.push(doc.data())

answered Apr 21, 2020 at 21:27

Bruno Ribarić

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