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Question

Is there any eslint rule that would prevent someone from doing this const result = bar(baz());

I would prefer const a = baz(); const result = bar(a); const a = baz(); const result = bar(a);

Ideally I could configure maximum nesting, so maybe 1 nesting is okay but more than that is not foo(bar(baz()))

Answer 1

I don't see any existing eslint rule or plugin specifically for the case you mention. The closest one I can find is for a subset of the behavior applying only to nested callbacks: max-nested-callbacks . You could write your own plugin .