unicodeExtendedEscapesInTemplates12.ts(1,13): error TS1198: An extended Unicode escape value must be between 0x0 and 0x10FFFF inclusive.


==== unicodeExtendedEscapesInTemplates12.ts (1 errors) ====
    var x = `\u{FFFFFFFF}`;
                ~~~~~~~~
!!! error TS1198: An extended Unicode escape value must be between 0x0 and 0x10FFFF inclusive.
    