react native text get number of lines

1<Text numberOfLines={2} ellipsizeMode='tail'>
2  long string
3</Text>

1const NUM_OF_LINES = 5;
2const SOME_LONG_TEXT_BLOCK = 'Lorem ipsum ...';
3
4function SomeComponent () { 
5  const [ showMore, setShowMore ] = useState(false);
6  const onTextLayout = useCallback(e => {
7    setShowMore(e.nativeEvent.lines.length > NUM_OF_LINES);
8  }, []);
9
10  return (
11    <Text numberOfLines={NUM_OF_LINES} onTextLayout={onTextLayout}>
12      {SOME_LONG_TEXT_BLOCK}
13    </Text>
14  );
15}
16