Angular Pipes Filtering on Multiple Keys

filter.pipe.ts

<ul>
  <li *ngFor="let item of _items | filter:{ label: filterText, description: filterText } : false">{{ item.value }} - {{ item.label }} - {{ item.description }}</li>
</ul>





@Pipe({
    name: 'filter'
})
export class FilterPipe implements PipeTransform {
  transform(items: any, filter: any, isAnd: bool): any {
    if (filter && Array.isArray(items)) {
      let filterKeys = Object.keys(filter);
      if (isAnd) {
        return items.filter(item =>
            filterKeys.reduce((memo, keyName) =>
                (memo && new RegExp(filter[keyName], 'gi').test(item[keyName])) || filter[keyName] === "", true));
      } else {
        return items.filter(item => {
          return filterKeys.some((keyName) => {
            console.log(keyName);
            return new RegExp(filter[keyName], 'gi').test(item[keyName]) || filter[keyName] === "";
          });
        });
      }
    } else {
      return items;
    }
  }
}