How to hide the button button in the bootstrap modal box

<div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel" aria-hidden="true">
    <div class="modal-dialog">
        <div class="modal-content">
            <div class="modal-header">
                <button type="button" class="close" data-dismiss="modal" aria-hidden="true"></button>
                <h4 class="modal-title" id="myModalLabel"></h4>
            </div>
            <div class="modal-body" id="modal_userId"></div>
            <div class="modal-footer">
                <button type="button" class="btn btn-default" data-dismiss="modal"></button>
                <button type="button" id="modal_user" class="btn btn-primary"></button>
            </div>
        </div><!-- /.modal-content -->
    </div><!-- /.modal -->
</div>

id= "modal_user" this button

how to hide him when calling up a modal box

Sep.16,2021

first add hidden, this class, like this

<button type="button" id="modal_user" class="btn btn-primary hidden"></button>

<button type="button" id="modal_user" **hidden** class="btn btn-primary"></button>

just add this hidden attribute, which is removed when displayed

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MySQL Error : Disk full (/tmp/#sql-temptable-64f5-7b9a99-2550a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-7b9a99-2550a.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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