pass dynamic value (key) to the html table

No, not if the key isn't the actual id of the book.

$book->id;

seems that would be an id.

@jlrdw like I have one parent table each row will have one child table. based on parent table id I just wanna display the child table here is my sample code

 @foreach($data as $student)
            <tr class="clickable" data-toggle="collapse" id="row1" data-target=".row1">
                <td class="glyphicon glyphicon-plus">{{ $student['id'] }}</td>
            </tr>
            @if ($student['class'])
                <table class="table table-sm table-dark collapse row1">
                    <thead>
                        <tr>
                            <th scope="col">Name</th>
                        </tr>
                    </thead>
                    <tbody>

here instead of row1 i wanna pass a dymanic value. how can I achieve that here? Thanks!

Do you mean like this?

 @foreach($data as $student)
            <tr class="clickable" data-toggle="collapse" id="row{{$student->id}}" data-target=".row{{$student->id}}">

Also.. A new table should be inside a td

<tr><td>table goes here</td></tr>

Thanks @jlrdw @sinnbeck