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Implementing a map function for an object triggers a false positive for useJsxKeyInIterable when rendering in a JSX, even when the object is not an Iterable.
I've provided a concrete example in the playground link,
Code of Conduct
I agree to follow Biome's Code of Conduct
The text was updated successfully, but these errors were encountered:
This is known limitation. Since we currently lack a reliable method to determine whether the type of a variable is an Array or not, all method that might possibly be called on an Array object are considered, including map, filter, ...
Environment information
Rule name
lint/correctness/useJsxKeyInIterable
Playground link
https://biomejs.dev/playground/?code=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%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%2FACAAdABoAGkAcwAuAHYAYQBsAHUAZQAuAGQAYQB0AGEAIAA6ACAAbgB1AGwAbAA7AAoAIAAgAH0ACgB9AAoACgBjAG8AbgBzAHQAIAByAGUAcwB1AGwAdAAgAD0AIABuAGUAdwAgAFIAZQBzAHUAbAB0ACgAewAgAGQAYQB0AGEAOgAgACIAaABlAGwAbABvACIAIAB9ACkAOwAKAAoALwAvACAAQgBpAG8AbQBlACAAcgBlAHAAbwByAHQAcwAgAGEAIABmAGEAbABzAGUAIABwAG8AcwBpAHQAaQB2AGUAIABiAGUAYwBhAHUAcwBlACAAbwBmACAAdABoAGUAIAB1AHMAZQAgAG8AZgAgAGAAbQBhAHAAYAAgAGEAcwAgAGEAIABtAGUAdABoAG8AZAAgAG4AYQBtAGUACgBjAG8AbgBzAHQAIABDAG8AbQBwAG8AbgBlAG4AdAAxACAAPQAgACgAKQAgAD0APgAgAHIAZQBzAHUAbAB0AC4AbQBhAHAAKAAoAGQAYQB0AGEAKQAgAD0APgAgADwAcAA%2BAHsAZABhAHQAYQB9ADwALwBwAD4AKQAuAG8AawAoACkAOwAKAGMAbwBuAHMAdAAgAEMAbwBtAHAAbwBuAGUAbgB0ADIAIAA9ACAAKAApACAAPQA%2BACAAcgBlAHMAdQBsAHQALgBtAGEAcABwAGUAZAAoACgAZABhAHQAYQApACAAPQA%2BACAAPABwAD4AewBkAGEAdABhAH0APAAvAHAAPgApAC4AbwBrACgAKQA7AAoA
Expected result
Implementing a
map
function for an object triggers a false positive foruseJsxKeyInIterable
when rendering in a JSX, even when the object is not an Iterable.I've provided a concrete example in the playground link,
Code of Conduct
The text was updated successfully, but these errors were encountered: