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Using a ternary expression in React

In this component:

 const MovieComponent = (props) => {
  const { Poster, Price, Title, cinemaWorldPrice } = props.movie;

  return (
    <MovieContainer>
      <CoverImage src={Poster} alt="" />
      <MovieName>{Title}</MovieName>

      <InfoColumn>
        <MovieInfo>FilmWorld: ${Price}</MovieInfo>
        <MovieInfo>CinemaWorld: ${cinemaWorldPrice}</MovieInfo>
      </InfoColumn>
    </MovieContainer>
  );
};

I'm wanting to write a ternary expression that will change the font color of:

<MovieInfo>FilmWorld: ${Price}</MovieInfo>
        <MovieInfo>CinemaWorld: ${Price}</MovieInfo>

Something basically saying

if (Filmworld Price > CinemaWorld Price) { Filmworld Price = color: "green"}

and vice versa. Is this possible? And would the code be in the movie info section? This is on React.

about 4 years ago · Juan Pablo Isaza

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Accepted Answer · 2022-06-30T08:23:25.860Z

You need to

properly interpolate the prices into JSX (${} is only for template literals)
surround the price texts in another element, like a span, so you can then conditionally color that span if needed

const MovieComponent = (props) => {
    const { Poster, Price, Title, cinemaWorldPrice } = props.movie;
    return (
        <MovieContainer>
            <CoverImage src={Poster} alt="" />
            <MovieName>{Title}</MovieName>
            <InfoColumn>
            <MovieInfo>
                    FilmWorld:
                    <span style={Price > cinemaWorldPrice ? { color: 'green' } : null}>{Price}</span>
                </MovieInfo>
                <MovieInfo>
                    CinemaWorld:
                    <span style={Price < cinemaWorldPrice ? { color: 'green' } : null}>{cinemaWorldPrice}</span>
                </MovieInfo>
            </InfoColumn>
        </MovieContainer>
    );
};

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Using a ternary expression in React

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Andres GPT