Dear @bitjuice

I don't know, what you want to do exactly. Do you want to remove spaces from chip before adding them to an array or something else?

You can use the (labelsChange) which is fired, when an array of chips has changed, and then do whatever you want.

Please take a look at the below code:

.html:

<mdb-material-chips [(ngModel)]="addtags" (labelsChange)="onLabelsChange($event)" (keydown.enter)="onEnterKeyDown($event)"></mdb-material-chips>

.ts:

 hideElement: boolean = true;
  addtags: string[] = [];

  onLabelsChange(event: any) {
    console.log(event);
  }

  onEnterKeyDown(event: any) {
    event.target.value = event.target.value.trim().replace(' ', '-');
  }

Best Regards,

Damian