jquery constructor modifies data during form submission_jquery

Post the code first

<script type="text/javascript">
  function appendText(){
    var content = $("#textarea").val();
    var new_content = content + "wap";
    $("#textarea").attr("value",new_content);
  };
</script>

Then when submitting the form

<form onsubmit="appendText();" >

Then check the data beauty in the background, and the corresponding characters will be added accordingly

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