how to concat without duplicates by selecting options in angular,typescript?

Question

// newscenario.component.ts

selectedProcessList: any = [];
processname: any = [];


onProcessSelection()
  {
   
    this.selectedProcessList.map(selectingProcess => { 
      this.processname = this.processname.concat(selectingProcess.name);
      
      
    });

<p-multiSelect [showHeader]="false" defaultLabel="Select Process" [options]="processList" optionLabel="name" [(ngModel)]="selectedProcessList" optionLabel="name" (onChange)="onProcessSelection($event)"></p-multiSelect>

1. Result showing in UI is p2,p2,p1

   <p-multiSelect [showHeader]="false" defaultLabel="Select Process" [options]="processList" optionLabel="name" [(ngModel)]="selectedProcessList" optionLabel="name" (onChange)="onProcessSelection($event)"></p-multiSelect>
   

question from:https://stackoverflow.com/questions/65916317/how-to-concat-without-duplicates-by-selecting-options-in-angular-typescript

Answer 1

Waitting for answers