一个前端js问题，求解答

前端js怎么将20230113105621，转化为时间格式呢，即2022-01-12 10:56:21

示例如下，可运行哦，望采纳：

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript ISO Dates</h2>

<p id="demo"></p>

<script>
const d = "20230113105621".replace(
    /^(\d{4})(\d{2})(\d{2})(\d{2})(\d{2})(\d{2})$/,
    "$1/$2/$3 $4:$5:$6");  
document.getElementById("demo").innerHTML = d;
</script>

</body>
</html>

先判断位数是否等于14，再利用字符串截取拼接