export const isBrowser = typeof window !== 'undefined' ; export const isIOS = isBrowser && /(iPad|iPhone|iPod)/gi . test ( navigator . platform ) ; export const isIE = isBrowser && /MSIE|Trident/ . test ( navigator . userAgent ) ; export const isWin10IE = isBrowser && isIE && navigator . userAgent . indexOf ( 'Windows NT 10.0' ) > - 1 ;