export function isMsWindow()

in packages/ie11-detection/src/MsWindow.ts [49:59]

• 10 lines of code
• 3 McCabe index (conditional complexity)

export function isMsWindow(window: Window): window is MsWindow {
  if (quacksLikeAnMsWindow(window) && window.msCrypto.subtle !== undefined) {
    const { getRandomValues, subtle } = window.msCrypto;
    return msSubtleCryptoMethods
      .map<Function>(methodName => subtle[methodName])
      .concat(getRandomValues)
      .every(method => typeof method === "function");
  }

  return false;
}