E0012: escaped character is not allowed in identifiers
A function or variable name includes a Unicode escape sequence, and the escape sequence refers to a character which isn't allowed in a function or variable name:
let guitar\u2604 = "\uD83C\uDFB8";
let handc\uffed = true;
To fix this error, use the code point of a Unicode character which is allowed, or remove the extraneous backslash from the name:
let guitar\u3604 = "\uD83C\uDFB8";
let handcuffed = true;
The initial character in a function or variable name can be any of the following:
- ID_Start
$_
Characters after the initial character in a function or variable name can be any of the following:
- ID_Continue
$- ZWJ (U+200D)
- ZWNJ (U+200C)
Introduced in quick-lint-js version 0.2.0.