react-slot-counter

react-slot-counter

react-slot-counter is a feature-rich React component that displays numbers and strings with an engaging slot machine animation effect.

Features

• Customize animation duration and other settings
• Animate only changed characters
• Control animation start with a ref
• Easily add custom styles to the characters and separators

Installation

To install the package, run the following command:

npm install react-slot-counter

Usage

Import SlotCounter and use it in your component. Here's a simple example:

import React from 'react';
import SlotCounter from 'react-slot-counter';

function App() {
  return (
    <>
      <SlotCounter value={123456} />
      <SlotCounter value="1,234,567" />
      <SlotCounter value={['1', '2', '3', '4', '5', '6']} />
      <SlotCounter value="??????" />
      <SlotCounter value={36.5} duration={2} />
      <SlotCounter
        value={123456}
        charClassName="char"
        separatorClassName="sep"
      />
    </>
  );
}

export default App;

Demo

For more examples of usage and available options, check out the demo page.

Props

Prop	Type	Default	Description	Version
value (required)	number or string		The value to be displayed. It can be a number or a string with numbers and commas.
duration	number	0.7	The duration of the animation in seconds.
dummyCharacters	Array<string>	Defaults to random numbers from 0 to 9	An array of dummy characters to be used in the animation.
dummyCharacterCount	number	6	The number of dummy characters to be displayed in the animation before reaching the target character.
autoAnimationStart	boolean	true	Determines whether the animation should start automatically when the component is first mounted.
animateUnchanged	boolean	false	Determines whether to animate only the characters that have changed.
containerClassName	string		The class name of container.
charClassName	string		The class name of each character.
separatorClassName	string		The class name of the separator character (. or ,).
hasInfiniteList	boolean	false	Determines whether the list should appear as continuous, with the end of the target character seamlessly connected to the beginning.	1.4.2

Ref

You can access the SlotCounter component using a ref. This ref can be used to start the animation of the component.

Method	Description
startAnimation	Start the animation of the component

The startAnimation method accepts an optional object with the following properties:

• duration: The duration of the animation in seconds. Overrides the duration prop.
• dummyCharacterCount: The number of dummy characters to be displayed in the animation before reaching the target character. Overrides the dummyCharacterCount prop.

Example:

import React, { useRef } from 'react';
import SlotCounter, { SlotCounterRef } from 'react-slot-counter';

function App() {
  const counterRef = useRef < SlotCounterRef > null;

  const handleStartClick = () => {
    counterRef.current?.startAnimation();
  };

  return (
    <div>
      <SlotCounter value={123456} ref={counterRef} />
      <button onClick={handleStartClick}>Start</button>
    </div>
  );
}

export default App;

Contributing

Contributions, issues, and feature requests are welcome! If you'd like to contribute, please follow these steps:

1. Fork the project
2. Create a new branch for your feature or bugfix
3. Commit your changes
4. Push your changes to the branch
5. Open a pull request

Please also make sure to update tests as appropriate and follow the coding style of the project.

License

This project is licensed under the MIT License

Changelog

1.4.2

2023-04-25

Added

• Infinite List Appearance feature.