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use-color-change

v1.0.2

Published

Flash text in color when the text changes

Downloads

5,436

Readme

use-color-change

React hook for flashing a numeric value when it changes

Installation

This module can be used in any React project that supports hooks.

npm i use-color-change

Usage

Use the hook and pass a number as the first parameter. Specify the colors you want to flash and how long the animation should take. The return value of the hook has the type {animation: string}, you can pass it as a style for any element and also further customize it for example using animation-timing-function if you please.

export const App = () => {
    const [value, setValue] = useState(0);
    const colorStyle = useColorChange(value, {
        higher: 'limegreen',
        lower: 'crimson',
        duration: 1800
    });

    return <div style={colorStyle}>{value}</div>;
};

Function signature

useColorChange(value: number, {
    higher: string | null;
    lower: string | null;
    duration?: number | undefined;
})
  • value: The numeric value for which the animation should be based on.
  • options:
    • higher: The color which should be flashing when the value increases. You can pass null for no animation.
    • lower: The color which should be flashing when the value decreases. You can pass null for no animation.
    • duration: (optional) How long the flash should take in miliseconds. Default is 1800.
    • property: (optional) either color or background-color, allowing you to animate the background color instead.

Author

© Jonny Burger

License

MIT