超文本标记语言

<div class="counter" data-target="
    <?php
    $sql = "select Books_Not_Returned from booksnotreturned ";
    $result = mysqli_query($con, $sql);
    $row = mysqli_fetch_array($result);
    $val = $row['Books_Not_Returned'];
    $Int = (int)$val;
    echo  $Int;
    ?>
    ">0</div>

JS系统

// COUNTER
  const counters = document.querySelectorAll('.counter');
  const speed = 500; // The lower the slower

  counters.forEach(counter => {
  const updateCount = () => {
  const target = +counter.getAttribute('data-target');
  const count = +counter.innerText;

  // Lower inc to slow and higher to slow
  const inc = target / speed;

  // console.log(inc);
  // console.log(count);

  // Check if target is reached
  if (count < target) {
  // Add inc to count and output in counter
  counter.innerText = count + inc;
  // Call function every ms
  setTimeout(updateCount, 1);
  } else {
  counter.innerText = target;
  }
  };

  updateCount();
  });

我试图使计数器停止在数据库中存储的值，当我试图将目标值分配给该变量时，它开始为1.00000000，然后为1.10000，依此类推，直到该变量的实际值