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Type guards doesn't work on multilevel if statements #5100
Description
I just noticed that type guards doesn't work on multilievel if statements? Is it by design?
var t: string | boolean | number;
if (typeof t === 'boolean' || typeof t === 'number') {
if (typeof t === 'number') {
}
else {
t // should be boolean, but is string | boolean
}
}
Activity
DanielRosenwasser commentedon Oct 4, 2015
I wonder if this is at all related to #4874, but it definitely seems like a bug.
tinganho commentedon Oct 5, 2015
Daniel Rosenwasser (@DanielRosenwasser) I think it is related.
weswigham commentedon Nov 11, 2015
Fixed by #5442.