Include/Exclude zipcode ranges

include-exclude-zipcode-ranges.js

$('ul.models li.model').each(function(i, node) {
  
  var li = $(node);
  
  // <li data-excludes="88995, 90000-99999">
  var includes = li.attr('data-includes').replace(' ', '').split(',');
  var excludes = li.attr('data-excludes').replace(' ', '').split(',');
  
  if(!includes.length){
    includes = [[0, 99999]];
  } else {
    // normalize
    $.each(includes, function(i, item){
      item = item.split('-');
      if(item.length == 1){
        item = [item[0], item[0]];
      }
      includes[i] = [1*item[0], 1*item[1]];
    });
  }
  
  includes.sort(function(a, b){
    return a[0] - b[0];
  });
  
  $.each(excludes, function(i, excludedZip) {
    var excludeRange = excludedZip.split('-');
    if (excludeRange.length == 1) {
      excludeRange = [excludeRange[0], excludeRange[0]];
    }
    excludeRange = [1*excludeRange[0], 1*excludeRange[1]];
    
    // we have a range: excludeRange[0] - excludeRange[1]
    $.each(includes, function(i, includeRange){
      if(excludeRange[1] < includeRange[1]){
        var newIncludeRange = [excludeRange[1] + 1, includeRange[1]];
        includeRange[1] = excludeRange[0] + 1;
        if(i){
          includes[i-1][1] = includeRange[1] - 1;
        }
      }
    });
  });
  
  li.css('display', 'none');
  $.each(includes, function(i, range) {
    var isIncluded = userZip >= range[0] && userZip <= range[1];
    if(isIncluded){
      li.css({
        'display' : 'block'
      });
    }
  });
  
}); // end $('ul.models li.model').each(...)