Can't retrieve data from featureLayer

Question

I can't get any value from featurelayer. This is the code:

function testarvin1() {
    require([
        "esri/Map",
        "esri/layers/FeatureLayer"],
             function (FeatureLayer) {

                var layerName = $('#ClassifyLayer').val().replace(LAYER_PREFIX, '');

                var fl = new esri.layers.FeatureLayer("http://192.168.0.205:6080/arcgis/rest/services/SAMA/MapServer/3", {
                    id: 3,
                    mode: FeatureLayer.MODE_SNAPSHOT,
                    outFields: ["*"],

                });


                console.log("fl is " + fl);
                var g = fl.minScale;
                var h = fl.name;

                console.log("the minscale is =  " + g);
                console.log("the name  is =  " + h);

                fl.applyEdits();
                map.addLayer(fl);

        });}

I get "the fl is [object object]", "the minscale is = 0" and "the name is undefined" in console.

What am i doing wrong? I changed the featurelayer mode but didn't help.

Answer 1

you have to add the layer to the map before you call applyEdits() and you have to wait for the onLoad event before all properties will be appropriately hydrated.

var fl = new FeatureLayer(..);
map.addLayer(fl);
fl.on("load", function(evt){
  //inspect evt.layer properties and/or call fl.applyEdits()
});

this is because adding the layer to the map triggers a web request to the service itself to gather metadata that is asynchronous.