New with version 3.3 of the API, a feature layer (or graphics layer) can be the only layer in a map. World regions are used in this sample.
<!DOCTYPE html> <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>Feature Layer Only Map</title> <link rel="stylesheet" href="https://js.arcgis.com/3.46/esri/css/esri.css"> <style> html, body, #map { height: 100%; width: 100%; margin: 0; padding: 0; } </style> <script src="https://js.arcgis.com/3.46/"></script> <script> require([ "dojo/dom-construct", "esri/map", "esri/layers/FeatureLayer", "esri/geometry/Extent", "esri/InfoTemplate", "dojo/domReady!" ], function( domConstruct, Map, FeatureLayer, Extent, InfoTemplate ) { var bounds = new Extent({ "xmin":-16045622, "ymin":-811556, "xmax":7297718, "ymax":11142818, "spatialReference":{"wkid":102100} }); var map = new Map("map", { extent: bounds }); var url = "https://sampleserver6.arcgisonline.com/arcgis/rest/services/WorldTimeZones/MapServer/2"; var template = new InfoTemplate("World Regions", "Region: ${REGION}"); var fl = new FeatureLayer(url, { id: "world-regions", infoTemplate: template }); map.addLayer(fl); } ); </script> </head> <body> <div id="map"></div> </body> </html>