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Allow implicit undefined
returns when the contextual union type contains it
#57912
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I’m not the right person to review this, because I personally lean strongly toward the belief that distinctions between
return
,return undefined
, and no return belong in a linter and not in TS, which I think is not the consensus view on the team. I can’t tell whether the design meeting notes on this were meant to be descriptive or prescriptive:If it was intended to be prescriptive, this baseline change violates the intention that was captured in the notes. However, moving in this direction is my preference, so I’m going to approve in hopes that it moves the review along 🤷♂️
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I believe that was descriptive, stating what the current behavior is and that it's inconsistent.