jQuery filtering select options does not work in Safari (but works in Chrome and FF)

Question

I have a form with some dropdowns, and the first selected dropdown will serve to filter the second dropdown\'s choices (to limit them). The following code works just fine in FF

Answer 1

If you are going to use .filter, you should be return a boolean indicating whether or not to include the current item instead of using .show() and .hide() documentation

Otherwise, use .each or .map

Answer 2

Thanks to @charlietfl for alerting me to the fact that hiding options is not universally supported. Here is the solution I ended up going with:

1. I separated my options into separate js objects
2. I then check the value from the first dropdown, and use that to get the correct menu object
3. I then empty the existing (full) menu, and then append the options from the appropriate object.

Here is the actual code:

if(~jQuery(this).attr('id').indexOf('5b0ad35592224') && ~jQuery(this).attr('id').indexOf(jQuery(this).closest('tr').attr('data-id'))) {
  var vallie = jQuery(this).val();
  var thismenu = menu_portes; // set default menu object
  if (vallie === 'Tiroir') {thismenu = menu_tiroirs } else if (vallie === 'Côté') {thismenu = menu_cotes }
  var $sub = jQuery('[id*="'+jQuery(this).closest('tr').attr('data-id')+'-field_5b0ad39f92225"]');

  $sub.empty(); // remove old options
  $sub.append(jQuery('<option>', { value: 'Choisir', text: 'Choisir'})); // add Choisir at top
  jQuery.each(thismenu, function(key,value) { // loop through my object options
    $sub.append(jQuery("<option></option>").attr("value", key).text(value)); //append options from my menu object
  });
  jQuery($sub).val('Choisir'); // set menu to Choisir 
  };