Hello, 0xFFe2 is valid HexIntegerLiteral, because 'e' and '2' is one of the hex digit. So I think it is OK.
0xFFe2 // 65506 0xFFe3 // 65507 Thanks. On Sat, Feb 25, 2012 at 10:40 PM, Mathias Bynens <[email protected]> wrote: > The spec grammar for `HexIntegerLiteral` is as follows: > http://es5.github.com/x7.html#x7.8.3 > > HexIntegerLiteral :: > 0x HexDigit > 0X HexDigit > HexIntegerLiteral HexDigit > > HexDigit :: one of > 0 1 2 3 4 5 6 7 8 9 a b c d e f A B C D E F > > Note that no `ExponentPart` seems to be allowed here. > > However, a lot of engines seem to support exponents after hex integer > literals: > > 255; // 255 > 0xFF; // 255 > 255e2; // 25500 > 0xFFe2; // 65506 > > I couldn’t find this in the spec though. Is this defined anywhere? Is > this expected behavior or not? > _______________________________________________ > es-discuss mailing list > [email protected] > https://mail.mozilla.org/listinfo/es-discuss >
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