Function createHandler

packages/virtual-core/src/index.ts:166–173

(isScrolling: boolean)

        )

  const createHandler = (isScrolling: boolean) => () => {
    const { horizontal, isRtl } = instance.options
    offset = horizontal
      ? element['scrollLeft'] * ((isRtl && -1) || 1)
      : element['scrollTop']
    fallback()
    cb(offset, isScrolling)
  }
  const handler = createHandler(true)
  const endHandler = createHandler(false)
  endHandler()