Build a Color Picker App - Build a Color Picker App

JavaScript
1

Tell us what’s happening:

I am working with the useState hook in react and I am trying to apply the current value or color chosen in the input field to the color-picker-container’s background color. However, I am unsure how I should be applying that color with the handle function.

This is what I attempted originally for the return statement:

return (

    <div style="background-color: {bgColor}" id="color-picker-container">

      <input type="color" id="color-input" />

    </div>

  );

However, I can’t simply use it as a prop in this instance since it’s a string. I am unsure how I can apply a style to an HTML element when dealing with a useState hook.

Your code so far

<!-- file: index.html -->
<!DOCTYPE html>
<html>

<head>
    <meta charset="UTF-8" />
    <title>Color Picker</title>
    <link rel="stylesheet" href="styles.css" />
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react/18.3.1/umd/react.development.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/react-dom/18.3.1/umd/react-dom.development.min.js"></script>
    <script src="https://cdnjs.cloudflare.com/ajax/libs/babel-standalone/7.26.5/babel.min.js"></script>
    <script
      data-plugins="transform-modules-umd"
      type="text/babel"
      src="index.jsx"
    ></script>
</head>

<body>
    <div id="root"></div>
    <script
      data-plugins="transform-modules-umd"
      type="text/babel"
      data-presets="react"
      data-type="module"
    >
      import { ColorPicker } from './index.jsx';
      ReactDOM.createRoot(document.getElementById('root')).render(<ColorPicker />);
    </script>
</body>

</html>

/* file: styles.css */
body,
html {
    margin: 0;
    padding: 0;
    height: 100%;
    font-family: Arial, sans-serif;
}

#color-picker-container {
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
    background-color: #ffffff;
}

input[type="color"] {
    position: absolute;
    margin-top: 50px;
    height: 40px;
}

/* file: index.jsx */
const { useState } = React;

export const ColorPicker = () => {
  const [bgColor, setBGColor] = useState();

  const handleBackgroundColr = () => {
    setBGColor(bgColor = input.value);
  }

  return (
    <div id="color-picker-container">
      <input type="color" id="color-input" />
    </div>
  );
};

Challenge Information:

Build a Color Picker App - Build a Color Picker App

2

Hi @xSaberNight

Review: What is State, and How Does the useState Hook Work?

Happy coding

1 Like