Get data from each firebase key with javascript

Question

I have the following registration at firebase:

And I’m trying to get the values "Female", "Male" and "Mixed" of each record and in case it is "true" I mark a checkbox, but apparently my code is not validating record by record but all at once

My code (I haven’t implemented all conditions yet I’m testing with only one):

    var db = firebase.database().ref("modality");
    db.once("value", function(snapshot){
      snapshot.forEach(function(child){

        if ( child.val().female == "true" ){
          inputModalityFemale.checked = true;
        } else {
          inputModalityFemale.checked = false;
        }
        console.log(child.val().mixed);
        
      });
    });

Would anyone have any tips?

Answer 1

The answer you get in the "snapshot" variable is not the data that comes from your database. In order for you to have access to the data, you have to perform the ". val()" function in the firebase response. It follows the amendments:

var db = firebase.database().ref("modality");
    db.once("value", function(snapshot){
      snapshot.val().forEach(function(child){

        if ( child.female == "true" ){
          inputModalityFemale.checked = true;
        } else {
          inputModalityFemale.checked = false;
        }
        console.log(child.mixed);

      });
    });

When executing the ". val()" function in the answer, then you have the array to be used in the iteration.