Function run

packages/virtual-core/src/index.ts:87–97

()

  const observer = new targetWindow.ResizeObserver((entries) => {
    const run = () => {
      const entry = entries[0]
      if (entry?.borderBoxSize) {
        const box = entry.borderBoxSize[0]
        if (box) {
          handler({ width: box.inlineSize, height: box.blockSize })
          return
        }
      }
      handler(element.getBoundingClientRect())
    }

    instance.options.useAnimationFrameWithResizeObserver
      ? requestAnimationFrame(run)