<a href="#" data-img="http://site1.ru/img1.jpg" @click="selectImage">Картинка 1</a>
<a href="#" data-img="http://site1.ru/img2.jpg" @click="selectImage">Картинка 2</a>
<img v-if="selectedImage" :src="selectedImage">...
selectImage(e) {
this.selectedImage = e.attr["data-img"]
}
...
console.time('Image loading');
document.querySelector('img').addEventListener('load', function() {
console.timeEnd('Image loading'); //> Image loading: 1192.903076171875ms
});var start = performance.now();
document.querySelector('img').addEventListener('load', function() {
var end = performance.now();
console.log(end - start); //> 13.999999999214197
});