disable block display if javascript is disabled

Is there a way to disable display of a certain block if the browser's javascript is disabled? For some blocks (from modules) there might not be any good non-javascript display, i.e. non-javascript might really interfere with the rest of the displayed page. If the core had a way (maybe a checkbox in the modify-block pages) to disable block display when javascript is disabled, that would be a huge help. I read that drupal.jsEnabled is going away - but, even if it were still there, that's in javascript itself, right? If there were a variable in php-land then we could use it in the currently existing block modify pages as a flag to display or not display.
Thanks