_subscribeToTabLabels() {
        if (this._tabLabelSubscription) {
            this._tabLabelSubscription.unsubscribe();
        }
        this._tabLabelSubscription = merge(...this._tabs.map(tab => tab._disableChange), ...this._tabs.map(tab => tab._labelChange)).subscribe(() => {
            this._changeDetectorRef.markForCheck();
        });
    }
/**
     * Subscribes to changes in the tab labels. This is needed, because the \@Input for the label is
     * on the MatTab component, whereas the data binding is inside the MatTabGroup. In order for the
     * binding to be updated, we need to subscribe to changes in it and trigger change detection
     * manually.
     * @return {?}
     */
Subscribes to changes in the tab labels. This is needed, because the \@Input for the label is
on the MatTab component, whereas the data binding is inside the MatTabGroup. In order for the
binding to be updated, we need to subscribe to changes in it and trigger change detection
manually.
Subscribes to changes in the tab labels . This is needed because the \ @Input for the label is on the MatTab component whereas the data binding is inside the MatTabGroup . In order for the binding to be updated we need to subscribe to changes in it and trigger change detection manually .
_subscribeToTabLabels() {
        if (this._tabLabelSubscription) {
            this._tabLabelSubscription.unsubscribe();
        }
        this._tabLabelSubscription = merge(...this._tabs.map(tab => tab._disableChange), ...this._tabs.map(tab => tab._labelChange)).subscribe(() => {
            this._changeDetectorRef.markForCheck();
        });
    }
_subscribeToTabLabels ( ) { if ( this . _tabLabelSubscription ) { this . _tabLabelSubscription . unsubscribe ( ) ; } this . _tabLabelSubscription = merge ( ... this . _tabs . map ( tab => tab . _disableChange ) , ... this . _tabs . map ( tab => tab . _labelChange ) ) . subscribe ( ( ) => { this . _changeDetectorRef . markForCheck ( ) ; } ) ; }
Subscribes to changes in the tab labels.
Subscribes to changes in the tab labels .