Manually setting basemap using ArcGIS API for JavaScript?

Question

Looked over the example can NOT figure out how to set basemap MANUALLY. I don't want a dijit widget, or any other libraries or anything like that. Just want to manually set a basemap to any of the already available types like Topographic, Satellites, Streets, etc. My script code so far is like this.

The part I can't figure out is marked with question marks.

 require([
 "esri/basemaps",
 "esri/map",
 "dojo/domReady!"
 ], function (esriBasemaps, Map) {
 /* ------------------------------------- */
 /* Basemap add one of the existing maps. */
 /* ------------------------------------- */
 esriBasemaps.myBasemap = {
 baseMapLayers ???
 };
 var map = new Map("map", {
 basemap: "myBasemap",
 center: [-118, 34.5],
 zoom: 8
 });
});

• john gravois: why not just add the layer to the map? gis.stackexchange.com/questions/54509/…
• digz6666: @JohnGravois declaring as a basemap have some advantages at some use cases.

Answer 1

From the documentation javascript api:

basemap Optional Specify a basemap for the map. The following are valid options: "streets" , "satellite" , "hybrid", "topo", "gray", "dark-gray", "oceans", "national-geographic", "terrain" and "osm". Property added at v3.3. The "terrain" and "dark-gray" options added at v3.12.

You only need to put in the code the name of the basemap:
var map = new Map("map", {
basemap: "streets|satellite|hybrid|etc..",
center: [-118, 34.5],
zoom: 8
});

• Mike R.: Your questions was completely useless re-read what I said it is marked in bold!
• lele3p: To use the default maps is not necessary to use esriBasemaps. esriBasemaps is used when you want to add a "custom" basemap and call it with the name (see: developers.arcgis.com/javascript/jsapi/esri.basemaps-amd.html ).To set the basemap, simply invoke the method map.setBasemap with the name of the desired basemap.

Answer 2

baseMapLayers parameter accepts array of wrapped urls like following:

esriBasemaps.myBasemap = {
 baseMapLayers: [
 {url: "https://services.arcgisonline.com/ArcGIS/rest/services/Specialty/DeLorme_World_Base_Map/MapServer"}
 ]
};

Official documentation: https://developers.arcgis.com/javascript/3/jsapi/esri.basemaps-amd.html Full source code sandbox: https://codepen.io/digz6666/pen/wPwPbW