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VisualizaçõesCheck If There Are Any Values in FireBase RealTime DataBase
I have a firebase database that looks like this:
I want to check if a 'Data' Child Exists.
I have a start:
var check = firebase.database().ref().orderByKey().equalTo("data").once("value", function (snapshot) {
if (!snapshot.exists()) {
firebase.database().ref('data').set({
messages: [],
userIds: [],
colours: [],
names: [],
});
}
});
I don't know what to put in the ref() function
·
Juan Pablo Isaza
1 Respostas
Responde à pergunta0
It's much simpler than what you're trying:
var check = firebase.database().ref("data");
check.once("value", function (snapshot) {
if (!snapshot.exists()) {
...
}
});
·
Juan Pablo Isaza
Relatório
Responde à pergunta