CODE EXAMPLE FOR JAVASCRIPT

d-block d-none js

chartElement.classList.contains('d-none') ? chartElement.classList.remove('d-none') : '';
!chartElement.classList.contains('d-block') ? chartElement.classList.add('d-block') : '';

noDataElement.classList.contains('d-block') ? noDataElement.classList.remove('d-block') : '';
!noDataElement.classList.contains('d-none') ? noDataElement.classList.add('d-none') : '';