Did you check the ES6 draft grammar{1]? The answer to that should be fairly
obvious there and if it isn't it would be good to know so we can try to make it
clearer in the spec.
[1]: http://people.mozilla.org/~jorendorff/es6-draft.html#sec-patterns
Allen
On Nov 22, 2013, at 9:25 AM, Mathias Bynens wrote:
> One more related question: are these three regular expression literals
> equivalent?
>
> 1. `/[💩-💫]/u`: raw astral symbols
> 2. `/[\u{1F4A9}-\u{1F4AB}]/u`: astral symbols represented using Unicode code
> point escape sequences
> 3. `/[\uD83D\uDCA9-\uD83D\uDCAB]/u`: astral symbols represented as a
> surrogate pair
>
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