<md-chips class="custom-chips" ng-model="obj.varcodeObjs" readonly="readonly"
                                          md-transform-chip="newBarcode($chip)" md-removable="removable" placeholder="Add Barcodes"
                                          input-aria-label="Barcodes">
                                    <md-chip-template>
                                        <span>
                                             <strong> {{$chip}}</strong><!--[{{$index}}]-->

                                        </span>
                                    </md-chip-template>
                                    <button md-chip-remove class="md-primary barcodechip" aria-label="Remove {{$chip}}">
                                        <md-icon md-svg-icon="md-close"></md-icon>
                                    </button>
                                </md-chips>