Created
August 8, 2019 02:00
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document.addEventListener("DOMContentLoaded", function () { | |
var $imagenes = document.querySelectorAll("img.lazy-loading"); | |
if ("undefined" !== typeof IntersectionObserver) { | |
var observador = new IntersectionObserver(function (entradas) { | |
for (var i = 0; i < entradas.length; entradas++) { | |
var entrada = entradas[i]; | |
if (entrada.intersectionRatio > 0) { | |
var imagen = entrada.target; | |
imagen.src = imagen.dataset.src;//src = data-src | |
console.log("Cargada: ", imagen.src) | |
observador.unobserve(imagen); | |
} | |
} | |
}); | |
for (var x = 0; x < $imagenes.length; x++) { | |
observador.observe($imagenes[x]); | |
} | |
} else { | |
//En caso de que no exista la API | |
for (var j = 0; j < $imagenes.length; j++) { | |
$imagenes[j].src = $imagenes[j].dataset.src; | |
} | |
} | |
}); |
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