how to get select text

[sam9010]

when choose a item in my list
fire onSelectedItemsChange event
i want to get select text item not id
how?

class ShiftRateScreen extends Component {
state = {
selectText: 'Role Name',
itemsList: items,
selectedItems: [],
};
onSelectedItemsChange = (selectedItems) => {
this.setState({
selectText: ?????????????????????????????????????,
selectedItems: selectedItems,
});
};
render() {
return (

<MultiSelect
items={this.state.itemsList}
uniqueKey="id"
displayKey="family"
ref={(component) => { this.multiSelect = component; }}
single={true}
hideSubmitButton={true}
selectText={this.state.selectText}
searchInputPlaceholderText="Type or select a Role"
filterMethod="full"
onSelectedItemsChange={this.onSelectedItemsChange}
/>
); } }