unicodeExtendedEscapesInRegularExpressions18.ts(1,24): error TS1501: This regular expression flag is only available when targeting 'es6' or later.


==== unicodeExtendedEscapesInRegularExpressions18.ts (1 errors) ====
    var x = /\u{65}\u{65}/gu;
                           ~
!!! error TS1501: This regular expression flag is only available when targeting 'es6' or later.
    