different modal appears bootstrap js code example
Example 1: open bootstrap modal using javascript
$("#myModal").modal(); //open modal
$('#myModal').modal('toggle'); //open modal
$('#myModal').modal('show'); //open modal
$('#myModal').modal('hide'); //hide modal
//@sujay
Example 2: how to show bootstrap modal
<script>
var myModal = new bootstrap.Modal(document.getElementById('ModalID'))
myModal.show()
</script>