пример автозаполнения угловых материалов.
<mat-form-field>
<mat-chip-list #chipList>
<mat-chip>Chip 1</mat-chip>
<mat-chip>Chip 2</mat-chip>
</mat-chip-list>
<input [matChipInputFor]="chipList">
</mat-form-field>
Blue-eyed Barracuda