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ボタンを押した際に値を取得する方法

JavaScript

Last updated at 2021-06-05Posted at 2021-06-05

これも備忘として書いておきます。

test2.html

<html>
  <head>
    <meta charset="utf-8" />
  </head>
  <body>
    <button id="button1" name="baka" value="500" onclick="cal()">計算実行</button>
    <script type="text/javascript">
    //ボタン押下時実行
    function cal(){
      alert(document.getElementById("button1").value*100);
    }
   </script>
 </body>
</html>

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