Here's the source code. I still can't figure out how to add it using the "source code" button.
<script>
require([
"esri/views/MapView",
"esri/WebMap",
"esri/layers/FeatureLayer",
"esri/Graphic",
"esri/geometry/Point",
"dojo/domReady!"
], function(MapView, WebMap, FeatureLayer, Point, Graphic) {
var newdata, lyr;
/**************************************************
* Define the specification for each field to create
* in the layer
**************************************************/
/**************************************************
* Create the map and view
**************************************************/
var webmap = new WebMap({
portalItem: {
id: "35277b863fde4449849662393868457e"
}
});
var view = new MapView({
container: "viewDiv",
map: webmap,
zoom: 10,
center: [-95.3630556, 29.7630556] // longitude, latitude
});
for(var i=0, il=data.length; i<il; i++){
var p = new Point({
longitude: data.XCoordinate,
latitude: data.YCoordinate,
spatialReference: { wkid: 4326 }
});
var g = new Graphic({
geometry: p,
symbol: {
type: "simple-marker", // autocasts as new SimpleMarkerSymbol()
style: "square",
color: "blue",
size: "8px", // pixels
outline: { // autocasts as new SimpleLineSymbol()
color: [255, 255, 0],
width: 3 // points
}
}
});
view.graphics.add(g);
}
});
</script>
