How to add buttons without submit the form in Angular?

In Angular, how I add button without submit the form?

for example I want to call onCancel without submit the form, but update button should be submit the form, and still keep the ngSubmit.

<form [formGroup]="form" (ngSubmit)="submit()">
<p>
<select ...>...</select>
</p>
<p>
<button
type="submit"
mat-raised-button
color="primary">
update
</button>
<button mat-raised-button (click)="onCancel($event)">
cancel
</button>
</p>
</form>

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