It looks like that call validates the values that the user entered into the form, before sending those values to the server to create an account with them. This type of client-side validation can improve the experience of the users of the app, since they get more immediate feedback in case they entered some invalid … Read more
Taking a closer look at your Firebase function, I was able to identify two issues: Usage of both await and then keywords in the same function. These two statements do the same thing. Quoting this accepted answer. await is just an internal version of .then() (doing basically the same thing). The reason to choose one … Read more
You are returning from the function before calling remove. Try: return oldItemsQuery.once(‘value’, function(snapshot) { // create a map with all children that need to be removed var updates = {}; snapshot.forEach(function(child) { updates[child.key] = null }); // execute all updates in one go and return the result to end the function return ref.update(updates); }).then(function() {; … Read more