avoid-assignments-as-conditions

added in: 1.22.0

warning

Pro+

Warns when an assignment is used inside a condition.

Example

❌ Bad:

void fn(List<String> values) {
  bool? flag;

  if (flag ??= values.isEmpty) {} // LINT
  if (flag = values.isEmpty) {} // LINT
}

✅ Good:

void fn(List<String> values) {
  bool? flag;

  flag ??= values.isEmpty;
  if (flag) {
    ...
  }
}