I'm trying to understand how to query a feature layer and getting the following error:
ReferenceError {stack: "ReferenceError: Query is not defined↵ at http:/… at d (http://js.arcgis.com/3.10/init.js:74:10)",
message: "Unable to draw graphic (geometry:null, symbol:null): Query is not defined"}
message: "Unable to draw graphic (geometry:null, symbol:null):
Query is not defined" stack: "ReferenceError: Query is not defined↵ at http://tobagoborn.com/esri/examples/exam1.html:40:24↵ at null. (http://js.arcgis.com/3.10/init.js:777:175)↵ at h.(anonymous function).g
[as onLoad] (http://js.arcgis.com/3.10/init.js:239:390)↵ at v (http://js.arcgis.com/3.10/js/esri/layers/FeatureLayer.js:24:225)↵
at S._forceIdentity (http://js.arcgis.com/3.10/js/esri/layers/FeatureLayer.js:50:338)↵ at S._initLayer (http://js.arcgis.com/3.10/js/esri/layers/FeatureLayer.js:25:72)↵
at Object. (http://js.arcgis.com/3.10/init.js:174:23)↵ at http://js.arcgis.com/3.10/init.js:630:478↵
at c (http://js.arcgis.com/3.10/init.js:74:221)↵ at d (http://js.arcgis.com/3.10/init.js:74:10)"
Script below:......
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="initial-scale=1, maximum-scale=1, user-scalable=no">
<title>Basic Example 1</title>
<link rel="stylesheet" href="http://js.arcgis.com/3.10/js/esri/css/esri.css">
<script src="http://js.arcgis.com/3.10/"></script>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
<script type="text/javascript">
var countries;
var buttonPicked;
var buttonType;
var countryCode = [];
var map, featureLayer, relatedTable;
var featureURL = "http://dev.consciousglobalchange.org/arcgis/rest/services/MEP/webmap_catalog/FeatureServer/0";
var relatedURL = "http://dev.consciousglobalchange.org/arcgis/rest/services/MEP/webmap_catalog/FeatureServer/1";
function countries()
{
require(["esri/map",
"esri/layers/FeatureLayer",
"esri/tasks/query",
"dojo/domReady!"
], function(Map,FeatureLayer)
{
map = new Map("mapDiv",
{
center: [-56.049, 38.485],
zoom: 3,
basemap: "streets"
});
var featureLayer = new FeatureLayer(featureURL,
{
outFields: ["*"]
});
featureLayer.on("load", function ()
{
var cntryq = new Query();
cntryq.outFields = ["*"];
cntryq.where = "UN = " + 840; //332
countries.queryFeatures(cntryq, function(featureSet)
{
var data = featureSet.features;
console.log(data);
});
}); //end of on
//map.addLayer(featureLayer);
}); //end require
}
countries();
</script>
</head>
<body>
<div id="mapDiv"></div>
</body>
</html>
