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I've searched the internet and tried many methods, but am stuck on a relatively simple problem.

The code below is the full scope of my question

<script>
//Function to eventually copy the entire row to another table
function dosomethingcrazy(a)
{
    console.log('hello');
    var $row = a.closest('tr');    // 找到行
    var $text = $row.find('drawingnum').text(); // 找到文本
                            
    // 讓我們測試一下
    alert($text);
}
</script>
                
<?php
if (isset($_POST['cars']))
{
    $category = $_POST['cars'];
}
//connect               
$con = mysqli_connect('localhost', 'root', '','ironfabpricing');

// 檢查連接
if ($con->connect_error)
{
      die("Connection failed: " . $conn->connect_error);
}

$sql = "SELECT `DWG_NO`, `Description`, `Profile`, `Pieces`, `Length`, `Ib/ft`, `Observ`  FROM `$category`";
$result = $con->query($sql);

// 設置表頭
echo "<div class='tableWrap'><table class='styled-table'><thead><tr><th>Add</th><th>DWG_NO</th><th>Description</th><th>Profile</th><th>Pcs</th><th>Length</th><th>Ib_ft</th><th style=width:100%>Observation</th></tr></thead><tbody>";

// 將數(shù)據(jù)庫結(jié)果輸出到可以查看的表中                  
if ($result->num_rows > 0)
{
      // 輸出每一行的數(shù)據(jù)
      while($row = $result->fetch_assoc())
          {
        echo "<tr><td>
        <button type='button' onclick='dosomethingcrazy(this)'>Try</button>
        </td><td>".$row["DWG_NO"]."</td><td>".$row["Description"]."</td>
                <td>".$row["Profile"]."</td>
                <td><textarea rows='1' cols='3' id='myTextarea' name='something'>0</textarea></td>
                <td>".$row["Length"]."</td>
                <td>".$row["Ib/ft"]."</td>
                <td>".$row["Observ"]."</td></tr>";
      }
} 

// 用戶可以填寫的表中的最后一行，以便將另一項輸入到數(shù)據(jù)庫中                 
echo "<tr><form id='form1' action='insert.php' method='post'>
      <input type='hidden' id='greeting' name='test' value='$category'>
      <td><button type='button' onclick='dosomethingcrazy(this)'>Try</button></td>
      <td><input type='text' name='drawingnum' placeholder='Drawing #'></td>
      <td><input type='text' name='type' placeholder='Type' required></td>
      <td><input type='text' name='profile' placeholder='profile' required></td>
      <td><input type='number' min='0' name='pieces' placeholder='0'></td>
      <td><input type='number' min='0' name='length' placeholder='0' required></td>
      <td><input type='number' min='0' name='ibft' placeholder='0' required></td>
      <td><textarea class='description' oninput = 'auto_grow(this)' type='text' name='description' value='initiate-value'></textarea></td></form></tr>";
echo "</tbody></table></div>";
                    
$con->close();
?>

The more basic part of my problem is with this function:

function dosomethingcrazy(a)
{
    console.log('hello');
    var $row = a.closest('tr');    // 找到行
    var $text = $row.find('drawingnum').text(); // 找到文本
                            
    // 讓我們測試一下
    alert($text);
}

Not called by this button

<button type='button' onclick='dosomethingcrazy(this)'>Try</button>

I can't figure out why anyway. I initially thought it was a scope issue, but it should be in scope. I've also tried a number of different ways of calling the function from the button. Thank you very much for any help you can provide. I tried using the class name to reference the button, and also tried various ways of calling the function posted on this site.