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
    });



});

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
});

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