javascript - How to make array by checking object property in firebase?

Question

I have a list of users in firebase database and I want to make an array of all users whose isDonor value is true. How can I accomplish that?

question from:https://stackoverflow.com/questions/66047653/how-to-make-array-by-checking-object-property-in-firebase

Answer 1

Something like this should work:

let ref = firebase.database().ref("users");
ref.orderByChild("isDonor").equalTo(true).once("value").then((results) => {
  results.forEach((snapshot) => {
    console.log(snapshot.key, snapshot.val());
  });
});

Also see the Firebase documentation on sorting and filtering data.