Hello all, Seeing ECMA262 section 7.8.4,
EscapeSequence :: > CharacterEscapeSequence > 0 [lookahead ∉ DecimalDigit] > HexEscapeSequence > UnicodeEscapeSequence Because of "[lookahead ∉ DecimalDigit]", strictly speaking, "\08" / "\09" is ill formed StringLiteral. But engines in the wild, V8, SpiderMonkey, JSC accepts this form and recognize it as "\x008". To bridege the gap, I think it is better to introduce this form to the spec officially. --- Regards, Yusuke Suzuki
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