フォームで選択した画像のプレビューが見れる「vue-img-preview」

by kabanoki

HTML

<script src="https://cdn.jsdelivr.net/npm/[email protected]/dist/vue-img-preview.min.js"></script>
<div id="app">
  <button class="mb" @click="removeImg">削除</button>
  <vue-img-preview input-name="file"></vue-img-preview>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.6.10/vue.min.js"></script>

CSS

#app {
  background: #fff;
  border-radius: 4px;
  padding: 20px;
  transition: all 0.2s;
}

li {
  margin: 8px 0;
}

h2 {
  font-weight: bold;
  margin-bottom: 15px;
}

.mb {
  margin-bottom: 15px;
}

Vue

const vueImgPreview　= window.vueImgPreview;

Vue.component('vue-img-preview', vueImgPreview);

let app = new Vue({
  el: '#app',
  methods: {
    removeImg: function(){
      let file = document.getElementsByName("file");
      file[0].value = null;
      this.$root.$children[0].$data.setImage = null
    }
  }
});