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【Vue.js】インスタンス内のプロパティーにアクセスする

Posted at

先ほどの関数をつかってい同じインスタンス内にあるメッセージプロパティーを呼ぶには「this.」をつける必要がある。

<body>
  <script src="https://cdn.jsdelivr.net/npm/vue@2.6.12/dist/vue.js"></script>
<div id="app">
<p>{{sayYes()}}</p>
<!-- <button v-on:click="reverseMessage">メッセージ反転</button> -->
</div>
<script>
  new Vue({
    el: '#app',
      data: { message: "おはよう"},
      methods: {
         sayYes: function() {
            return this.message;
      }
  }
})
</script>
</body>

20210504-114320.png

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