angular stepper change wait before changing

1@ViewChild('stepper', { static: false }) stepper: MatStepper;
2

1// I personally do this in ngAfterViewInit() method
2setTimeout(() => {
3    this.stepper.steps.forEach((step, idx) => {
4        step.select = () => {
5            // Your custom code here
6            // if you want to change step do execute code below
7            this.selectedStepIndex = idx;
8        };
9    });
10});
11

1<mat-horizontal-stepper [selectedIndex]="selectedStepIndex" #stepper>
2