code: function shouldFilter(filters, anno) {
    for (var i = filters.length - 1; i > -1; i--) {
      var filter = filters[i];
      if (filter.type === anno.type) {
        if (_.isEqual(filter.position, anno.position)) {
          if (anno.isA && anno.isA === 'Date') {
            var filterDate = new Date(filter.value), fieldDate = new Date(anno.typed.Date);
            if (filter.operator === '<') {
              return fieldDate < filterDate;
            } else if (filter.operator === '>') {
              return fieldDate > filterDate;
            } else {
              return filterDate === fieldDate;
            }
          }
        } else {
          return filter.value == anno.value;
        }
      }
    }
    return false;
  }
docs: Return true if this field should be filtered out