JSFiddle - React, Tailwind, and code Playground

HTML

<script type="text/javascript" src="https://api-maps.yandex.ru/2.1/?lang=ru_RU"></script>
<div id="map"></div>

CSS

#map{
  width:100%;
  height: 300px;
}

JavaScript

var YMYmap = null;
var YMY1label = null
function init() {
	YMYmap = new ymaps.Map("map",{
		 center: [55.752, 37.627],
		 zoom: 6,
		 controls: ['typeSelector'],
		 behaviors: ['scrollZoom', 'drag', 'multiTouch']
	}),
  overLay = function (options) {
            overLay.superclass.constructor.call(this, options);
            this._$content = null;
            this._$Lng = options.lng;
            this._$Lat = options.lat;
            this._$txt = options.txt;
           
        };
	
	ymaps.util.augment(overLay, ymaps.collection.Item, {
        onAddToMap: function (map) {
            overLay.superclass.onAddToMap.call(this, map);
            this._lastCenter = null;
           console.log('ok'); this.getParent().getChildElement(this).then(this._onGetChildElement, this);
        },

        onRemoveFromMap: function (oldMap) {
            this._lastCenter = null;
            if (this._$content) {
                this._$content.remove();
                this._mapEventGroup.removeAll();
            }
            overLay.superclass.onRemoveFromMap.call(this, oldMap);
        },
        _onGetChildElement: function (parentDomContainer) {
            // Создаем HTML-элемент с текстом.
            
            this._$content = $('<div style="font-family: Arial;font-size: 1em;line-height: 1.1em;left: 0;top: -0.8em;padding: 0.3em 0.6em; white-space: nowrap;display: inline-block;margin: 3px 0px 0px 0px; color: #333333;border: 1px solid #908070; background: rgba(255, 252, 248, 0.8);-moz-border-radius: 0.3em;-webkit-border-radius: 0.3em;-khtml-border-radius: 0.3em;border-radius: 0.3em;"></div>').appendTo(parentDomContainer);
            console.log('ok1');
            this._mapEventGroup = this.getMap().events.group();
            this._mapEventGroup.add('boundschange', this._createRequest, this);
             
            this._createRequest();
        },
		
		_createRequest: function() {
    	console.log('ok2');
			this._$content.html(this._$txt);
			global =...