5.5 Beta - Error assigning const string to enum from another file about typescript HOT 3 CLOSED

Isolated modules means that an emitter only needs to see a single file to know how to emit it. In this case, the error is correct because the type of a impacts whether or not the enum has a reverse mapping or not, and is therefore disallowed as only tsc could know that via analyzing other files (while say, babel, could not).

See also #56153

from typescript.

Reading the linked issue, I think I get it now.. It just wasn't obvious from the error message - "but must have syntactically recognizable string syntax" - I was thinking somehow the type of the constant was ending up string instead of a specific string e.g. "A"

from typescript.

"Must have syntactically-recognizable string syntax" or in other words "we must be able to tell that this is a string (and not, say, a number) just from looking at the syntax", which is not the case here.

from typescript.