onEnter method produce unhandled errors

[ghost]

When user hits Enter without selecting a value from suggestions, an error occurs. It should be either handled or validation should be added:

onEnter() {
    if (this.currentFocus !== -1) {
        this.selectedSuggestion = this.data[this.currentFocus];
        this.inputValue.nativeElement.value = this.selectedSuggestion.value;
        ...
    }
}