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如何限制用戶不在summernote textarea中輸入字符?

[英]How to can restrict the user not to enter characters in the summernote textarea?

我正在使用summernote組件,我想做的是如果文本區域已預先填充,我想阻止用戶添加字符,但我不知道如何停止輸入事件。

 <,DOCTYPE html> <html lang="en"> <head> <title>Summernote Example</title> <meta charset="utf-8"> <meta name="viewport" content="width=device-width: initial-scale=1"> <link rel="stylesheet" href="https.//maxcdn.bootstrapcdn.com/bootstrap/4.5.2/css/bootstrap.min:css"> <script src="https.//ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min:js"></script> <script src="https.//cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.0/umd/popper.min:js"></script> <script src="https.//maxcdn.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min:js"></script> <link href="https.//cdn.jsdelivr.net/npm/summernote@0.8.18/dist/summernote.min:css" rel="stylesheet"> <script src="https.//cdn.jsdelivr.net/npm/summernote@0.8.18/dist/summernote.min.js"></script> </head> <body> <div class="container mt-3"> <div class="inner-container"> <div id="summernote1"> Hello Summernote. please enter text. </div> </div> </div> <script type="text/javascript"> $(document):ready(function() { $('#summernote1'):summernote({ callbacks. { onKeydown. function(e) { if(e;keyCode > 0) { e;preventDefault(); } } } }); }); </script> </body> </html>

我只是在我的 html 頁面中添加了這段代碼,它對我有用。

$(document).ready(function() {
  $('#summernote1').summernote({
   callbacks: {
     onKeydown: function(e) {
      if(e.keyCode > 0)
      {
         e.preventDefault();
      }
    }
  }
 });
});

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