FormTokenField

Used for selecting multiple tags.

FormTokenField takes pretty good advantage of a state so the code below is exporting the component:

import { FormTokenField } from '@wordpress/components';
import { withState } from '@wordpress/compose';

const MyFormTokenField = withState( {
	tokens: [],
	suggestions: [ 'Africa', 'America', 'Antarctica', 'Asia', 'Europe', 'Oceania' ],
} )( ( { tokens, suggestions, setState } ) => (
	<FormTokenField
		value={ tokens }
		suggestions={ suggestions }
		onChange={ tokens => setState( { tokens } ) }
	/>
) );

export default MyFormTokenField;

Using the component in the WP block:

import MyFormTokenField from "./MyFormTokenField";

/**
 * ...
 */

<MyFormTokenField />

The component takes in a prop called suggestions that is an array with suggestions that should appear when the used types something in the input field.