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$mount

Last updated at Posted at 2021-05-07

$mountは後付けでvueインスタンス内部のelを設定したい場合に使います。

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script src="https://cdn.jsdelivr.net/npm/vue@2.6.12/dist/vue.js"></script>
  <div id="app1">
     <p>{{message}}</p>
     <p>{{name}}</p>
  </div>
<script>
  var data = {
    message: 'こんにちは',
    name: '前田'
  }
  var vm1 = new Vue({
    data: data
  })

  vm1.$mount('#app1')
</script>
</body>
</html>

20210507-221421.png

以下も同じになります

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script src="https://cdn.jsdelivr.net/npm/vue@2.6.12/dist/vue.js"></script>
  <div id="app1">
     <p>{{message}}</p>
     <p>{{name}}</p>
  </div>
<script>
  var data = {
    message: 'こんにちは',
    name: '前田'
  }
  var vm1 = new Vue({
    data: data
  }).$mount('#app1')
</script>
</body>
</html>
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