ant-design/components/slider/demo/event.tsx

import React from 'react';
import { Slider } from 'antd';

const onChange = (value: number | [number, number]) => {
  console.log('onChange: ', value);
};

const onAfterChange = (value: number | [number, number]) => {
  console.log('onAfterChange: ', value);
};

const App: React.FC = () => (
  <>
    <Slider defaultValue={30} onChange={onChange} onAfterChange={onAfterChange} />
    <Slider
      range
      step={10}
      defaultValue={[20, 50]}
      onChange={onChange}
      onAfterChange={onAfterChange}
    />
  </>
);

export default App;