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avoid-nested-conditional-expressions

added in: 1.6.0
style
⚙️

Checks for nested conditional expressions.

⚙️ Config​

Set acceptable-level (default is 1) to configure the acceptable nesting level.

dart_code_metrics:
  ...
  rules:
    ...
    - avoid-nested-conditional-expressions:
        acceptable-level: 2

Example​

❌ Bad:

final str = '';

final oneLevel = str.isEmpty ? 'hi' : '1';

final twoLevels = str.isEmpty
    ? str.isEmpty // LINT
        ? 'hi'
        : '1'
    : '2';

final threeLevels = str.isEmpty
    ? str.isEmpty // LINT
        ? str.isEmpty // LINT
            ? 'hi'
            : '1'
        : '2'
    : '3';

✅ Good:

final str = '';

final oneLevel = str.isEmpty ? 'hi' : '1';

final twoLevels = _getStr(str);

String _getStr(String str) {
    if (str.isEmpty) {
        return 'hi';
    }

    ...
}