javascript - React Native, in a text string, change color of words having # or @ in start just like twitter - Stack Overflow

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I have a text string some of words are having # or @ as prefix (in start of words, just as #example or @example) i want to change such words into blue color . React Native

I have a text string some of words are having # or @ as prefix (in start of words, just as #example or @example) i want to change such words into blue color . React Native

• javascript
• reactjs
• react-native

Share Improve this question Follow asked May 14, 2020 at 12:49 Soban ArshadSoban Arshad 1,4312020 silver badges1717 bronze badges 3

• please share your code – Asad Commented May 14, 2020 at 12:53
• just make them into anchor tags. – Michael Commented May 14, 2020 at 12:55
• const CustomText = (props) => { const text = props.text.split(' '); return <Text>{text.map(text => { if (text.startsWith('@') || text.startsWith('#')) { return <Text style={{ color: 'blue' }}>{text} </Text>; } return ${text} ; })}</Text>; } export default function App() { return ( <View style={styles.container}> <CustomText text="this is a @sample #text"/> </View> ); } – Soban Arshad Commented Jan 23, 2021 at 10:49

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2 Answers 2

Sorted by: Reset to default 7

You can use a custom ponent like below.

const CustomText = (props) => {
    const text = props.text.split(' ');
    return <Text>{text.map(text => {
      if (text.startsWith('@') || text.startsWith('#')) {
        return <Text style={{ color: 'blue' }}>{text} </Text>;
      }
      return `${text} `;
    })}</Text>;
}

export default function App() {
  return (
    <View style={styles.container}>
       <CustomText text="this is a @sample #text"/>
    </View>
  );
}

You can check the working snack https://snack.expo.io/@guruparan/demo2

This is my solution for this problem:

const changeColorInText = useMemo(() => {
        const textWithQuote = text.split("'")[1];
        const textParsed: string[] = text.split(textWithQuote);
        return (
            <>
                <Text>{textParsed[0]}</Text>
                <Text
                    style={{
                        color: 'red',
                        fontWeight: 'bold',
                    }}>
                    {textWithQuote}
                </Text>
                <Text>{textParsed[1]}</Text>
            </>
        );
    }, [text]);

I think will help for maybe different scenarios

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