How to use the @amcharts/amcharts4/maps.projections function in @amcharts/amcharts4

// Create the map chart
let chart = am4core.create("chartdiv", am4maps.MapChart);


// Chech if proper geodata is loaded
try {
	chart.geodata = am4geodata_worldLow;
}
catch (e) {
	chart.raiseCriticalError(new Error("Map geodata could not be loaded. Please download the latest <a href="\&quot;https://www.amcharts.com/download/download-v4/\&quot;">amcharts geodata</a> and extract its contents into the same directory as your amCharts files."));
}

// Set projection to be used
// @see {@link https://www.amcharts.com/docs/v4/reference/mapchart/#projection_property}
chart.projection = new am4maps.projections.Miller();

// Create polygon series
let polygonSeries = chart.series.push(new am4maps.MapPolygonSeries());
polygonSeries.useGeodata = true;
polygonSeries.exclude = ["AQ"]; // Exclude Antractica
polygonSeries.tooltip.fill = am4core.color("#000000");

let colorSet = new am4core.ColorSet();

// Configure polygons
let polygonTemplate = polygonSeries.mapPolygons.template;
polygonTemplate.tooltipText = "{name}";
polygonTemplate.togglable = true;

// Set events to apply "active" state to clicked polygons
let currentActive: am4maps.MapPolygon;

import am4themes_animated from "@amcharts/amcharts4/themes/animated";
import am4geodata_continentsLow from "@amcharts/amcharts4-geodata/continentsLow";


am4core.useTheme(am4themes_animated);

var mapChart = am4core.create("chartdiv", am4maps.MapChart);

try {
  mapChart.geodata = am4geodata_continentsLow;
}
catch (e) {
  mapChart.raiseCriticalError(new Error("Map geodata could not be loaded. Please download the latest amcharts geodata and extract its contents into the same directory as your amCharts files."));
}

mapChart.projection = new am4maps.projections.Miller;
// prevent dragging
mapChart.seriesContainer.draggable = false;
mapChart.seriesContainer.resizable = false;
// prevent zooming
mapChart.minZoomLevel = 1;
// countries
var countriesSeries = mapChart.series.push(new am4maps.MapPolygonSeries());
countriesSeries.useGeodata = true;
countriesSeries.mapPolygons.template.fill = am4core.color("#47c78a");
countriesSeries.mapPolygons.template.stroke = am4core.color("#47c78a");

var colorSet = new am4core.ColorSet();
var polygonTemplate = countriesSeries.mapPolygons.template;

// night series
var nightSeries = mapChart.series.push(new am4maps.MapPolygonSeries());

// Create map instance
var chart = am4core.create("chartdiv", am4maps.MapChart);
var interfaceColors = new am4core.InterfaceColorSet();

// Set map definition
try {
    chart.geodata = am4geodata_continentsLow;
}
catch (e) {
    chart.raiseCriticalError(new Error("Map geodata could not be loaded. Please download the latest <a href="\&quot;https://www.amcharts.com/download/download-v4/\&quot;">amcharts geodata</a> and extract its contents into the same directory as your amCharts files."));
}


// Set projection
chart.projection = new am4maps.projections.Orthographic();
chart.panBehavior = "rotateLongLat";

chart.seriesContainer.cursorOverStyle = am4core.MouseCursorStyle.grab;
chart.seriesContainer.cursorDownStyle = am4core.MouseCursorStyle.grabbing;

// Add zoom control
chart.zoomControl = new am4maps.ZoomControl();

chart.backgroundSeries.mapPolygons.template.polygon.fill = am4core.color("#ffffff");
chart.backgroundSeries.mapPolygons.template.polygon.fillOpacity = 0.1;

// Create map polygon series
var polygonSeries = chart.series.push(new am4maps.MapPolygonSeries());
polygonSeries.useGeodata = true;
polygonSeries.mapPolygons.template.nonScalingStroke = true;
polygonSeries.calculateVisualCenter = true;

import am4themes_animated from "@amcharts/amcharts4/themes/animated";
import am4geodata_worldLow from "@amcharts/amcharts4-geodata/worldLow";

am4core.useTheme(am4themes_animated);

let chart = am4core.create("chartdiv", am4maps.MapChart);


try {
    chart.geodata = am4geodata_worldLow;
}
catch (e) {
    chart.raiseCriticalError(new Error("Map geodata could not be loaded. Please download the latest <a href="\&quot;https://www.amcharts.com/download/download-v4/\&quot;">amcharts geodata</a> and extract its contents into the same directory as your amCharts files."));
}

chart.projection = new am4maps.projections.Mercator();

// zoomout on background click
chart.chartContainer.background.events.on("hit", () =&gt; { zoomOut() });

let colorSet = new am4core.ColorSet();
let morphedPolygon;

// map polygon series (countries)
let polygonSeries = chart.series.push(new am4maps.MapPolygonSeries());
polygonSeries.useGeodata = true;
// specify which countries to include
polygonSeries.include = ["IT", "CH", "FR", "DE", "GB", "ES", "PT", "IE", "NL", "LU", "BE", "AT", "DK"]

// country area look and behavior
let polygonTemplate = polygonSeries.mapPolygons.template;
polygonTemplate.strokeOpacity = 1;

label.fontSize = 12;
label.align = "left";
label.valign = "bottom"
label.fill = am4core.color("#927459");
label.background = new am4core.RoundedRectangle()
label.background.cornerRadius(10,10,10,10);
label.padding(10,10,10,10);
label.marginLeft = 30;
label.marginBottom = 30;
label.background.strokeOpacity = 0.3;
label.background.stroke =am4core.color("#927459");
label.background.fill = am4core.color("#f9e3ce");
label.background.fillOpacity = 0.6;

// Set projection
chart.projection = new am4maps.projections.Orthographic();
chart.panBehavior = "rotateLongLat";
chart.padding(10,10,10,10);

// Add zoom control
chart.zoomControl = new am4maps.ZoomControl();
chart.seriesContainer.cursorOverStyle = am4core.MouseCursorStyle.grab;
chart.seriesContainer.cursorDownStyle = am4core.MouseCursorStyle.grabbing;

var homeButton = new am4core.Button();
homeButton.events.on("hit", function(){
  chart.goHome();
});

homeButton.icon = new am4core.Sprite();
homeButton.padding(7, 5, 7, 5);
homeButton.width = 30;

// Create series
var femaleSeries = femaleChart.series.push(new am4charts.ColumnSeries());
femaleSeries.dataFields.valueX = "female";
femaleSeries.dataFields.valueXShow = "percent";
femaleSeries.calculatePercent = true;
femaleSeries.fill = femaleChart.colors.getIndex(4);
femaleSeries.stroke = femaleSeries.fill;
//femaleSeries.sequencedInterpolation = true;
femaleSeries.columns.template.tooltipText = "Females, age{categoryY}: {valueX} ({valueX.percent.formatNumber('#.0')}%)";
femaleSeries.dataFields.categoryY = "age";
femaleSeries.interpolationDuration = 1000;


var mapChart = mainContainer.createChild(am4maps.MapChart);
mapChart.projection = new am4maps.projections.AlbersUsa();
mapChart.geodata = am4geodata_usaHigh;
mapChart.zoomControl = new am4maps.ZoomControl();
mapChart.zIndex = -1;


var polygonSeries = mapChart.series.push(new am4maps.MapPolygonSeries())
polygonSeries.useGeodata = true;

var selectedStateId = "US";
var selectedPolygon;
var selectedStateName;

var polygonTemplate = polygonSeries.mapPolygons.template;
polygonTemplate.togglable = true;

var hoverState = polygonTemplate.states.create("hover");

// Create the map chart
let chart = am4core.create("chartdiv", am4maps.MapChart);


// Chech if proper geodata is loaded
try {
	chart.geodata = am4geodata_worldLow;
}
catch (e) {
	chart.raiseCriticalError(new Error("Map geodata could not be loaded. Please download the latest <a href="\&quot;https://www.amcharts.com/download/download-v4/\&quot;">amcharts geodata</a> and extract its contents into the same directory as your amCharts files."));
}

// Set projection to be used
// @see {@link https://www.amcharts.com/docs/v4/reference/mapchart/#projection_property}
chart.projection = new am4maps.projections.Miller();

// Create polygon series
let polygonSeries = chart.series.push(new am4maps.MapPolygonSeries());
polygonSeries.useGeodata = true;
polygonSeries.exclude = ["AQ"]; // Exclude Antractica
polygonSeries.tooltip.fill = am4core.color("#000000");

let colorSet = new am4core.ColorSet();

// Configure polygons
let polygonTemplate = polygonSeries.mapPolygons.template;
polygonTemplate.tooltipText = "{name}";
polygonTemplate.togglable = true;

// Set events to apply "active" state to clicked polygons
let currentActive;

import * as am4core from "@amcharts/amcharts4/core";
import * as am4maps from "@amcharts/amcharts4/maps";
import am4themes_animated from "@amcharts/amcharts4/themes/animated";
import am4geodata_worldLow from "@amcharts/amcharts4-geodata/worldLow";
import am4geodata_continentsLow from "@amcharts/amcharts4-geodata/continentsLow";


// Themes begin
am4core.useTheme(am4themes_animated);
// Themes end

// Create map instance
var chart = am4core.create("chartdiv", am4maps.MapChart);

// Set projection
chart.projection = new am4maps.projections.Mercator();

var restoreContinents = function() {
  hideCountries();
  chart.goHome();
};

// Zoom control
chart.zoomControl = new am4maps.ZoomControl();

var homeButton = new am4core.Button();
homeButton.events.on("hit", restoreContinents);

homeButton.icon = new am4core.Sprite();
homeButton.padding(7, 5, 7, 5);
homeButton.width = 30;
homeButton.icon.path = "M16,8 L14,8 L14,16 L10,16 L10,10 L6,10 L6,16 L2,16 L2,8 L0,8 L8,0 L16,8 Z M16,8";

am4core.useTheme(am4themes_dark);

var countryCodes = ["AF", "AO", "AR", "AM", "AU", "AT", "AZ", "BD", "BY", "BE", "BO", "BA", "BW", "BR", "BG", "KH", "CM", "CA", "CF", "TD", "CL", "CN", "CO", "CG", "CD", "CR", "CI", "HR", "CU", "CY", "CZ", "DK", "EC", "EG", "ER", "EE", "ET", "FI", "FR", "GE", "DE", "GR", "GL", "GP", "GT", "GN", "GW", "GY", "HT", "HN", "HU", "IS", "IN", "ID", "IR", "IQ", "IE", "IL", "IT", "JM", "JP", "JO", "KZ", "KE", "KP", "KR", "KG", "LA", "LV", "LB", "LS", "LR", "LY", "LT", "LU", "MK", "MG", "MY", "ML", "MT", "MR", "MX", "MD", "MN", "ME", "MA", "MZ", "MM", "NA", "NP", "NL", "NZ", "NI", "NE", "NG", "NO", "OM", "PK", "PA", "PG", "PY", "PE", "PH", "PL", "PT", "RO", "RU", "SA", "SN", "RS", "SK", "SI", "SO", "ZA", "SS", "ES", "SD", "SE", "CH", "SY", "TW", "TJ", "TZ", "TH", "TN", "TR", "TM", "UA", "AE", "GB", "US", "UY", "UZ", "VE", "VN", "YE", "ZM", "ZW"];

var chart = am4core.create("chartdiv", am4maps.MapChart);

try {
    chart.geodata = am4geodata_worldHigh;
}
catch (e) {
    chart.raiseCriticalError({
        "message": "Map geodata could not be loaded. Please download the latest <a href="\&quot;https://www.amcharts.com/download/download-v4/\&quot;">amcharts geodata</a> and extract its contents into the same directory as your amCharts files."
    });
}

chart.projection = new am4maps.projections.Mercator();
chart.padding(0, 20, 0, 20);
chart.minZoomLevel = 0.9;
chart.zoomLevel = 0.9;
chart.maxZoomLevel = 1;

var polygonSeries = chart.series.push(new am4maps.MapPolygonSeries());
polygonSeries.useGeodata = true;
polygonSeries.include = ["AF"];


var chart1 = am4core.create("hiddenchartdiv", am4maps.MapChart);
chart1.geodata = am4geodata_worldHigh;
chart1.projection = new am4maps.projections.Mercator();

var polygonSeries1 = chart1.series.push(new am4maps.MapPolygonSeries());
polygonSeries1.useGeodata = true;

am4core.useTheme(am4themes_animated);

var countryCodes = ["AF", "AO", "AR", "AM", "AU", "AT", "AZ", "BD", "BY", "BE", "BO", "BA", "BW", "BR", "BG", "KH", "CM", "CA", "CF", "TD", "CL", "CN", "CO", "CG", "CD", "CR", "CI", "HR", "CU", "CY", "CZ", "DK", "EC", "EG", "ER", "EE", "ET", "FI", "FR", "GE", "DE", "GR", "GL", "GP", "GT", "GN", "GW", "GY", "HT", "HN", "HU", "IS", "IN", "ID", "IR", "IQ", "IE", "IL", "IT", "JM", "JP", "JO", "KZ", "KE", "KP", "KR", "KG", "LA", "LV", "LB", "LS", "LR", "LY", "LT", "LU", "MK", "MG", "MY", "ML", "MT", "MR", "MX", "MD", "MN", "ME", "MA", "MZ", "MM", "NA", "NP", "NL", "NZ", "NI", "NE", "NG", "NO", "OM", "PK", "PA", "PG", "PY", "PE", "PH", "PL", "PT", "RO", "RU", "SA", "SN", "RS", "SK", "SI", "SO", "ZA", "SS", "ES", "SD", "SE", "CH", "SY", "TW", "TJ", "TZ", "TH", "TN", "TR", "TM", "UA", "AE", "GB", "US", "UY", "UZ", "VE", "VN", "YE", "ZM", "ZW"];

var chart = am4core.create("chartdiv", am4maps.MapChart);


try {
	chart.geodata = am4geodata_worldHigh;
}
catch (e) {
	chart.raiseCriticalError(new Error("Map geodata could not be loaded. Please download the latest <a href="\&quot;https://www.amcharts.com/download/download-v4/\&quot;">amcharts geodata</a> and extract its contents into the same directory as your amCharts files."));
}

chart.projection = new am4maps.projections.Mercator();
chart.padding(0, 20, 0, 20);
chart.minZoomLevel = 0.9;
chart.zoomLevel = 0.9;
chart.maxZoomLevel = 1;

var polygonSeries = chart.series.push(new am4maps.MapPolygonSeries());
polygonSeries.useGeodata = true;
polygonSeries.include = ["AF"];


var chart1 = am4core.create("hiddenchartdiv", am4maps.MapChart);
chart1.geodata = am4geodata_worldHigh;
chart1.projection = new am4maps.projections.Mercator();

var polygonSeries1 = chart1.series.push(new am4maps.MapPolygonSeries());
polygonSeries1.useGeodata = true;