react-flexigrid/src/dom/executionEnvironment.js

A React table component designed to allow presenting millions of rows of data.

export const canUseDOM = !!(
  typeof window !== 'undefined' &&
  window.document &&
  window.document.createElement
)

export const canUseWorkers = typeof Worker !== 'undefined'
export const canUseEventListeners = canUseDOM && !!(window.addEventListener || window.attachEvent)
export const canUseViewport = canUseDOM && !!window.screen
export const isInWorker = !canUseDOM