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prefer-early-return

added in: 1.3.0
style
⚙️

Warns when an if statement can be transformed to an early return. Early returns allow to reduce the code nesting level, improving the overall readability.

⚙️ Config​

Set ignore-if-case (default is false) to ignore if statements that have a case block.

dart_code_metrics:
  ...
  rules:
    ...
    - prefer-early-return:
        ignore-if-case: false

Example​

❌ Bad:

void someFunction() {
  if (_value == 2) { // LINT
    print('hello');
    print(_value);
  }
}

✅ Good:

void correct() {
  if (_value != 2) return;

  print('hello');
  print(_value);
}