avoid-unused-local-variable

v1.32.0

warning

effort: 4m

teams+

Warns when a local variable is not referenced and can be removed or renamed to _.

Example

❌ Bad:

void fn() {
  var a = 1;
  // LINT: This local variable is not used. Try removing the variable or using it.
  var b = a;

  print(a);
}

void withRecord() {
  // LINT: This local variable is not used. Try removing the variable or using it.
  final (a, b) = (1, 2);

  print(a);
}

✅ Good:

void fn() {
  var a = 1;

  print(a);
}

void withRecord() {
  final (a, _) = (1, 2);

  print(a);
}

Related Rules

• avoid-unnecessary-local-variable
• prefer-moving-to-variable
• move-variable-closer-to-its-usage
• use-existing-variable