Feeling is the symbol definition out of the question, but can't find, is there a big help me have a look at

 
<script> 
Var map; 

Require ([
"Esri/map", "esri/geometry/Point", "esri/SpatialReference," 
"Esri/symbols/SimpleMarkerSymbol", "esri/graphic", "esri/symbols/SimpleLineSymbol", "esri/geometry/Polygon" 
], function (Map, Point, SpatialReference SimpleMarkerSymbol, Graphic) {
The map=new map (" map ", {
Basemap: "topo," 
Center: [45] 0,, 
Zoom: 
}); 
The map on (" load ", the function () {drawPolygon; }); 
The function drawPolygon () {
Var points=[[0, 0], [do], [do] 45, 45, 0 [], [0, 0]]. 
Var polygon=new polygon (new SpatialReference (4326} {wkid:)); 
Polygon. AddRing (points); 
Var simpleLineSymbol=new simpleLineSymbol (simpleLineSymbol. STYLE_SOLID, new Color (58,27,177 []), 23). 
Var graphic=new graphic (polygon, SimpleLineSymbol); 

The map. The graphics. The add (graphic); 
}; 
}); 
</script>