decrement method

void decrement(
  1. String name,
  2. int value
)

Decrements a variable by a specific value.

Implementation

void decrement(String name, int value) {
  if (value < 1) {
    throw ArgumentError.value(value, 'value', 'Invalid decrement value');
  }

  if (value == 1) {
    stmt('$name--');
  } else {
    stmt('$name -= $value');
  }
}