if (c) return <div><Foo /><Bar /><Baz /></div>; else return <div><Baz /><Bar /><Foo /></div>; What will React do to the state of Foo/Bar/Baz in this case? Is it a reorder or delete/insert? Do I need keys? A linter should probably warn about adding keys.
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Sometimes it feels like linters should have a verbose mode that complains more but avoid bothering you by default.
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