Vue.js Vue CLI Image Upload Preview

Vue.js Vue CLI Image Upload Preview

C:\vuejs\my-vue-app>npm run serve

src/App.vue

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//src/App.vue <template>   <div id="app">     <h1>Vue.js Vue CLI Image Upload Preview</h1>     <HelloWorld/>   </div> </template>   <script> import HelloWorld from './components/filePreview.vue'   export default {   name: 'App',   components: {     HelloWorld   } } </script>   <style> #app {   font-family: Avenir, Helvetica, Arial, sans-serif;   -webkit-font-smoothing: antialiased;   -moz-osx-font-smoothing: grayscale;   text-align: center;   color: #2c3e50;   margin-top: 60px; } </style>

src/components/filePreview.vue

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//src/components/filePreview.vue <template>   <div>     <div class="imagePreviewWrapper" :style="{ 'background-image': `url(${previewImage})` }" @click="selectImage"> </div>       <input ref="fileInput" type="file" @input="pickFile">   </div> </template>   <script> export default {   data() {       return {         previewImage: null       };     },   methods: {       selectImage () {           this.$refs.fileInput.click()       },       pickFile () {         let input = this.$refs.fileInput         let file = input.files         if (file && file[0]) {           let reader = new FileReader           reader.onload = e => {             this.previewImage = e.target.result           }           reader.readAsDataURL(file[0])           this.$emit('input', file[0])         }       }   } } </script>   <style> .imagePreviewWrapper {     width: 250px;     height: 250px;     display: block;     cursor: pointer;     margin: 0 auto 30px;     background-size: cover;     background-position: center center; } </style>