E0207: code point in Unicode escape sequence must not be greater than U+10FFFF
Identifiers, string literals, and template literals can contain Unicode escape
sequences starting with
\u. It is a syntax error for a Unicode escape sequence
to refer to a character which is beyond the range of valid Unicode code points
(U+0000 to U+10FFFF):
To fix this error, make sure that the escaped code point is between U+0000 and U+10FFFF inclusive.
Documentation for other errors