Вы можете использовать
$(document).ready(function() {
// executes when HTML-Document is loaded and DOM is ready
});
ИЛИ
$(window).load(function() {
// executes when complete page is fully loaded, including all frames, objects and images
});
или если вы хотите скрыть загрузчик после проверки наличия таблицы в DOM или нет, то вы можете проверить, если таблица не имеет значения по длине тега или селектора.
Примерно так.
var yourElement= document.getElementById("yourElement");
if(yourElement){
// Element exists
}
По jQuery
if ($( "#yourElement").length) {
// element exists
}
$(document).ready(function() {
$('.spinner-border').hide();
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<!doctype html>
<html lang="en">
<head>
<!-- Required meta tags -->
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<!-- Bootstrap CSS -->
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css" integrity="sha384-Vkoo8x4CGsO3+Hhxv8T/Q5PaXtkKtu6ug5TOeNV6gBiFeWPGFN9MuhOf23Q9Ifjh" crossorigin="anonymous">
<title>Hello, Table!</title>
</head>
<body>
<div class="container">
<div class="pt-3">
<span class="h1 mr-3">Large Table</span>
<div class="spinner-border text-primary" role="status">
<span class="sr-only">Loading...</span>
</div>
</div>
<div class="table-responsive pt-3">
<table class="table table-hover">
<thead class="thead-dark">
<tr>
<th scope="col">Column 1</th>
<th scope="col">Column 2</th>
<th scope="col">Column 3</th>
<th scope="col">Column 4</th>
</tr>
</thead>
<tbody>
<tr>
<th scope="row">Name 1</th>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<th scope="row">Name 2</th>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
<tr>
<th scope="row">Name 3</th>
<td>Data</td>
<td>Data</td>
<td>Data</td>
</tr>
</tbody>
</table>
</div>
</div>
<!-- Optional JavaScript -->
<!-- jQuery first, then Popper.js, then Bootstrap JS -->
<script src="https://code.jquery.com/jquery-3.4.1.slim.min.js" integrity="sha384-J6qa4849blE2+poT4WnyKhv5vZF5SrPo0iEjwBvKU7imGFAV0wwj1yYfoRSJoZ+n" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/popper.js@1.16.0/dist/umd/popper.min.js" integrity="sha384-Q6E9RHvbIyZFJoft+2mJbHaEWldlvI9IOYy5n3zV9zzTtmI3UksdQRVvoxMfooAo" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/js/bootstrap.min.js" integrity="sha384-wfSDF2E50Y2D1uUdj0O3uMBJnjuUD4Ih7YwaYd1iqfktj0Uod8GCExl3Og8ifwB6" crossorigin="anonymous"></script>
</body>
</html>