JSFiddle - React, Tailwind, and code Playground
by Viktor L
HTML
<div id="map_container" class="map container-fluid">
<script id="ymap_lazy"
async
data-src="https://api-maps.yandex.ru/services/constructor/1.0/js/?um=constructor%3A0INpMJ4rkMDs1BKJk6vodzxrTkrhodFp&width=600&height=450&lang=ru_RU&scroll=true"></script>
</div>
CSS
.map.container-fluid {
height: 340px;
padding: 0;
background-image: url(https://vchemraznica.ru/wp-content/uploads/2016/10/yan522.jpg);
background-position: center center;
}
JavaScript
let map_container = document.getElementById('map_container');
let options_map = {
once: true,//запуск один раз, и удаление наблюдателя сразу
passive: true,
capture: true
};
map_container.addEventListener('click', start_lazy_map, options_map);
map_container.addEventListener('mouseover', start_lazy_map, options_map);
map_container.addEventListener('touchstart', start_lazy_map, options_map);
map_container.addEventListener('touchmove', start_lazy_map, options_map);
let map_loaded = false;
function start_lazy_map() {
if (!map_loaded) {
let map_block = document.getElementById('ymap_lazy');
map_loaded = true;
map_block.setAttribute('src', map_block.getAttribute('data-src'));
map_block.removeAttribute('data_src');
console.log('YMAP LOADED');
}
}