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Issue with mapped types and enums #17288
Description
TypeScript Version: 2.4.1 /
Code
enum Things {
ONE = "one",
TWO = "two"
}
type ThingMap = { [TKey in Things]: any };
const thingMap: ThingMap = {
one: null,
two: null
};
function setThing(thing: Things, something: any) {
thingMap[thing] = something;
}Expected behavior:
Just like I can do thingMap[Things.ONE] = 'blah' without any errors, this should not throw an error.
Actual behavior:
src/test.ts(14,2): error TS7017: Element implicitly has an 'any' type because type 'ThingMap' has no index signature.
Activity
Jessidhia commentedon Jul 19, 2017
Seems related to #16687
blocka commentedon Jul 19, 2017
I encountered that too but it's not quite the same thing.
mhegazy commentedon Aug 30, 2017
Actually duplicate of #16760, and should be fixed by #18029