tests/cases/conformance/es6/unicodeExtendedEscapes/unicodeExtendedEscapesInStrings14_ES6.ts(3,13): error TS1125: Hexadecimal digit expected.


==== tests/cases/conformance/es6/unicodeExtendedEscapes/unicodeExtendedEscapesInStrings14_ES6.ts (1 errors) ====
    
    // Shouldn't work, negatives are not allowed.
    var x = "\u{-DDDD}";
                
!!! error TS1125: Hexadecimal digit expected.