findLast and findLastIndex not working / existing in codesandbox

Asked Dec 13 '22 at 16:01

Active Dec 13 '22 at 16:01

Viewed 1,716 times

In codesandbox for example [1,2,3].findLastIndex(n => n === 2) has an error saying that the method findLastIndex (I've checked and the same is true for findLast) does not exist on a number array. I've tried the same with other types of arrays and it;s the same.

It is not a browser problem since trying that in the browser console works.

asked Dec 13 '22 at 16:01

The Truth

Not an explanation, but `const res = [1,2,3].findLastIndex(n => n === 2);` is working well... – Pierre-Alain EMO Dec 13 '22 at 16:52
I'm getting the same error with typescript updated to the latest version. – OGreeni Dec 13 '22 at 19:16
This is a known issue, there is a temporary workaround in this discussion: https://github.com/microsoft/TypeScript/issues/48829 – OGreeni Dec 13 '22 at 19:19
So should i close this - mark it as answered or what? – The Truth Dec 15 '22 at 18:16

findLast and findLastIndex not working / existing in codesandbox

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