putLeading method

void putLeading(
  1. String key,
  2. double value
)

Put a leading value

Implementation

void putLeading(String key, double value) {
  if (key.isEmpty) {
    throw ArgumentError('Leading key cannot be empty');
  }
  if (value < 0) {
    throw ArgumentError('Leading value cannot be negative: $value');
  }
  updateLeading((leading) => leading.put(key, value));
}