Use React JS styles in Laravel blade template

If you are trying to give CSS styles in React JS inside Laravel blade template, but having the following error:

This happens when you try to give CSS styles in React JS in the following way:

function MyApp() {
    return (
        <h1 style={{
            color: "red"
        }}>Hello world</h1>
    )
}

ReactDOM.createRoot(
    document.getElementById("react-app")
).render(<MyApp />)

The error you are having is because the double curly braces {{ which are used in React JS for styling the tag, are also used by Laravel blade template to render the value of a PHP variable. Laravel will think of it as a PHP variable and will throw an error.

To fix this error, you need to create a separate object in your React JS component. That object will have all the styles for each tag. Modify your React JS component to the following:

function MyApp() {

    const styles = {
        heading: {
            color: "red"
        }
    }

    return (
        <h1 style={ styles.heading }>Hello world</h1>
    )
}

You can see that instead of setting the CSS directly in the style attribute, I have created a separate variable and used its value as a variable. This way your error gets fixed. Also, it will help you in setting CSS styles to multiple tags without duplicating them.