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                <div id="app">
  <h1>Lazy-Loading Image:<br /> Easily Editable Aspect Ratio<br /> In Vue</h1>
  <lazy-load data-src="" width="600" height="400" alt="sample image" />


These styles are just decorative: they don't affect the lazy-loading functionality at all.

body {
  text-align: center;

img {
  display: block;
  margin: 1em auto;
  width: 90%;
  max-width: 800px;
  border: 4px solid blue;

button {
  margin: 1em;
  padding: 0.5em 1em;
  border: 0;
  font-size: 1.2rem;
  font-weight: bold;
  text-transform: uppercase;
  letter-spacing: 0.0625em;
  background-color: #222;
  color: #fff;

button:focus {
  background-color: #444;


                Vue.component('lazy-load', {
  data: function() {
    return {
      unloaded: true,
      src: this.placeholderSrc(this.width, this.height)
  props: ['dataSrc', 'height', 'width', 'alt'],
  methods: {
    loadImage: function() {
      this.unloaded = false
      this.src = this.dataSrc
    placeholderSrc(w, h) {
      return `data:image/svg+xml,%3Csvg xmlns="" viewBox="0 0 ${w} ${h}"%3E%3C/svg%3E`
  template: `<div><img :src="src" :alt="alt" /><button v-if="unloaded" @click="loadImage">Click to Load</button></div>`

const v = new Vue({el: '#app'})