Function genData

docs/examples/scroll-loading.tsx:5–10

(len: number)

import '../../assets/index.less';

function genData(len: number) {
  return new Array(len).fill(0).map((_, index) => ({
    label: `label ${index}`,
    value: index,
  }));
}

const Loading = ({ onLoad }) => {
  React.useEffect(() => {