function isIE(version) {
    if (version === 11) {
      return isIE11;
    }
    if (version === 10) {
      return isIE10;
    }
    return isIE11 || isIE10;
  }
Determines if the browser is Internet Explorer
@method
@memberof Popper.Utils
@param {Number} version to check
@returns {Boolean} isIE