How to efficiently toggle classes with multiple HTML elements across multiple files

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I am toggling an arrow image whenever my div is clicked. I am controlling the state of the click with

const [toggleArrow, setToggleArrow] = useState(false)

My div has an onClick function that controls the state and toggles the faq-subject-toggle-arrow class that adds an image

<div className={`faq-subject ${toggleArrow ? 'faq-subject-toggle-arrow' : ''}`} onClick={() => {
  setToggleArrow(!toggleArrow)
}>

My problem is that I have 50 divs across multiple styles and don’t want to make 50 states to toggle one image.

Is there a more efficient solution for this with less code?

1 thought on “How to efficiently toggle classes with multiple HTML elements across multiple files”

  1. I created something that does the same thing. I extracted your code and made a component. now the state lives inside the component and will not affect others.

    live demo

    component

    import { useState } from "react";

export const Button = () => {
  const [toggleArrow, setToggleArrow] = useState(false);
  return (
    <div
      style={{ width: "50px", height: "50px", margin: "10px" }}
      className={`faq-subject ${toggleArrow ? "faq-subject-toggle-arrow" : ""}`}
      onClick={() => {
        setToggleArrow(!toggleArrow);
      }}
    ></div>
  );
};

    css file, I didn’t have the same classes so I created mine.

    .faq-subject {
  background: blue;
}
.faq-subject-toggle-arrow {
  background: orange;
}

    now you can use it wherever you want for multiple times

    import { Button } from "./button";
import "./styles.css";

export default function App() {
  return (
    <div className="App">
      <Button />
      <Button />
      <Button />
      <Button />
      <Button />
    </div>
  );
}
    Reply

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