Why is deeply nested code considered bad?
Deeply nested code is hard to read, hard to test, and requires high cognitive effort to track which 'else' belongs to which 'if'.
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More FAQs in Common Mistakes with Nested If-Else Statements
It is a logical bug that occurs when an 'else' statement inadvertently attaches to the wrong (usually the nearest) 'if' statement due to missing curly braces.
Yes. Even if the logic is only one line, using curly braces prevents future bugs when someone adds a second line without noticing the missing braces.
You can reduce nesting by using logical operators (&&, ||) to combine conditions, or by using Guard Clauses to return early for invalid states.
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