๐ฐescape sequence
JS โฉ value โฉ primitive โฉ String โฉ escape sequence
escape sequence
code points
\xXX
โฆ
(XX
= 00
~FF
, 2 hex digits)
(Basic Latin and Latin-1 Supplement)
(= ISO-8859-1)
U+00
00
~ U+00
FF
\uXXXX
(XXXX
= 0000 ~ FFFF
, 4 hex digits)
U+
0000
~ U+
FFFF
\u{X}
โฆ\u{XXXXXX}
(X
โฆXXXXXX
, 1~6 hex digits)
(the entirety of Unicode)
U+000
0
~ U+
10FFFF
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