Amazing!
So do you mean instead of having;
<?php
$location = get_field('location');
if( !empty($location) ):
?>
<div class="acf-map">
<div class="marker" data-lat="<?php echo $location['lat']; ?>" data-lng="<?php echo $location['lng']; ?>"></div>
</div>
<?php endif; ?>
I can just do this;
<?php
$location = get_field('location');
if( !empty($location) ):
?>
<div class="acf-map">
<!-- <div class="marker" data-lat="<?php echo $location['lat']; ?>" data-lng="<?php echo $location['lng']; ?>"></div> -->
</div>
<?php endif; ?>