From: es-discuss [mailto:[email protected]] On Behalf Of Gray Zhang

> Therefore, I’d like to ask whether we should ONLY use Promise as a 
> return-or-throw synonyms, or we should use it in a yes-or-no scenario

You should only use the rejection channel of promises for exceptional 
situations, similar to what you would use synchronous exceptions for.

http://www.w3.org/2001/tag/doc/promises-guide#rejections-should-be-exceptional
 
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