Function IsIdentifierStart

internal/scanner/scanner.go:2241–2243

(ch rune)

}

func IsIdentifierStart(ch rune) bool {
	return stringutil.IsASCIILetter(ch) || ch == '_' || ch == '$' || ch >= utf8.RuneSelf && stringutil.IsUnicodeIdentifierStart(ch)
}

func IsIdentifierPart(ch rune) bool {
	return IsIdentifierPartEx(ch, core.LanguageVariantStandard)