component.js

import withUniqueId from './with-unique-id';

function FormField({
	id,
	label,
	value,
	onChange,
}) {
	return (
		<div>
			<label for={ `field-${ id }` }>{ label }</label>
			<input id={ `field-${ id }` } type="text" value={ value } onChange={ onChange }/>
		</div>
	);
}

export withUniqueId( FormField );

with-unique-id.js

export function withUniqueId( WrappedComponent ) {
	return class extends React.Component {
		constructor( props ) {
			super( props );
			this.id = _.uniqueId();
		}

		render() {
			return (
				<WrappedComponent
					{ ...this.props }
					id={ this.id }
				/>

			);
		}
	}
};