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Sign upJP22: Implementations are discouraged? #186
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bterlson
Nov 19, 2015
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Notes are non-normative. This is just an editorial note conveying the opinion of TC39 (or the editor) that implementations should not choose to define a new typeof value for exotic objects, but they are free to do so per the previous table.
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Notes are non-normative. This is just an editorial note conveying the opinion of TC39 (or the editor) that implementations should not choose to define a new typeof value for exotic objects, but they are free to do so per the previous table. |
bterlson
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Nov 19, 2015
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satou441 commentedNov 16, 2015
[JP22] At pp168, 12.5.6.1 Runtime Semantics, NOTE of Evaluation says "Implementation are discouraged from defining ...". What does it mean by "discouraged"? Should it behave as implementation defined, undefined, some error, or something else?