table-sorting-example.html

<mat-button-toggle-group [(ngModel)]="multiSortEnabled">
  <mat-button-toggle [value]="false">Single-sorting</mat-button-toggle>
  <mat-button-toggle [value]="true">Multi-sorting</mat-button-toggle>
</mat-button-toggle-group>

<table mat-table [dataSource]="dataSource" matSort (matSortChange)="announceSortChange($event)"
       [matSortMultiple]="multiSortEnabled"
       class="mat-elevation-z8">

  <!-- First name Column -->
  <ng-container matColumnDef="firstName">
    <th mat-header-cell *matHeaderCellDef mat-sort-header sortActionDescription="Sort by first name">
      First name
    </th>
    <td mat-cell *matCellDef="let element"> {{element.firstName}} </td>
  </ng-container>

  <!-- Last name Column -->
  <ng-container matColumnDef="lastName">
    <th mat-header-cell *matHeaderCellDef mat-sort-header sortActionDescription="Sort by last name">
      Last name
    </th>
    <td mat-cell *matCellDef="let element"> {{element.lastName}} </td>
  </ng-container>

  <!-- Position Column -->
  <ng-container matColumnDef="position">
    <th mat-header-cell *matHeaderCellDef mat-sort-header sortActionDescription="Sort by position">
      Position
    </th>
    <td mat-cell *matCellDef="let element"> {{element.position}} </td>
  </ng-container>

  <!-- Office Column -->
  <ng-container matColumnDef="office">
    <th mat-header-cell *matHeaderCellDef mat-sort-header sortActionDescription="Sort by office">
      Office
    </th>
    <td mat-cell *matCellDef="let element"> {{element.office}} </td>
  </ng-container>

  <!-- Salary Column -->
  <ng-container matColumnDef="salary">
    <th mat-header-cell *matHeaderCellDef mat-sort-header sortActionDescription="Sort by salary">
      Salary
    </th>
    <td mat-cell *matCellDef="let element"> {{element.salary}} </td>
  </ng-container>

  <tr mat-header-row *matHeaderRowDef="displayedColumns"></tr>
  <tr mat-row *matRowDef="let row; columns: displayedColumns;"></tr>
</table>