formatCost function

String formatCost(
  1. double cost
)

Format cost as a string.

Implementation

String formatCost(double cost) {
  if (cost < 0.01) return '\$${cost.toStringAsFixed(4)}';
  if (cost < 1.0) return '\$${cost.toStringAsFixed(3)}';
  return '\$${cost.toStringAsFixed(2)}';
}