vue-material/src/core/utils/MdResizeObserver.js

Material Design for Vue.js

import raf from 'raf'
import MdObserveEvent from './MdObserveEvent'

export default (el = window, observerFn) => {
  const observer = MdObserveEvent(el, 'resize', () => {
    raf(observerFn)
  }, { passive: true })

  return {
    destroy: () => observer.destroy
  }
}