react-beautiful-dnd-next/src/view/draggable/check-own-props.js

Beautiful and accessible drag and drop for lists with React

// @flow
import invariant from 'tiny-invariant';
import type { Props } from './draggable-types';

export default (props: Props) => {
  // Number.isInteger will be provided by @babel/runtime-corejs2
  invariant(
    Number.isInteger(props.index),
    'Draggable requires an integer index prop',
  );
  invariant(props.draggableId, 'Draggable requires a draggableId');
  invariant(
    typeof props.isDragDisabled === 'boolean',
    'isDragDisabled must be a boolean',
  );
};