Angular Sort

sort(s: string, buyuktenKucuge: boolean) {
    debugger;
    let value: string[] = s.split(".");

    this.list = this.list.sort((a, b) => {
      for (let index = 0; index < value.length; index++) {
        a = a[value[index]];
        b = b[value[index]];
      }
      return buyuktenKucuge ? (a[s] < b[s] ? 1 : -1) : (a[s] > b[s] ? 1 : -1);
    });
    let count: number = 1;
    this.list.forEach(x => {
      x['index'] = count++;
    });
    this.tableList = this.list.filter(x => x['index'] >= 1 && x['index'] <= this.pageSize); // pagination
    this.paginator.pageIndex = 0;
    
    document.getElementById(s+(!buyuktenKucuge)).style.display = 'contents';
    document.getElementById(s+buyuktenKucuge).style.display = 'none';

    this.changeDetectorRefs.markForCheck();
  }