Pass filter value

#1

Hello i want to filter the array that it is returned. I have this on.html file

        <ion-col col-3>
          <a class="circle" (click)="filter('T')">
            <ion-icon name="document" [ngClass]="mediaType == 'T' ? 'active' : ''"></ion-icon>
          </a>
        </ion-col>

and this is the values and functions i have on .ts file

        export class AllMediaPage {

	allMedia:any =[];
	mediaType:string = '';

	constructor(


        
	allMediaSet(){
		this.userData.allMedias(this.mediaType)
		.map(res => res.json())
		.subscribe(data => {

			if (data.success) {
				this.allMedia = data.mediaFeed;
			}
		}); 
	}


      filter(mediaType: any) {
		this.mediaType = mediaType;
	}