extractRevenue function

double? extractRevenue(
  1. String key,
  2. Map<String, dynamic> properties
)

Implementation

double? extractRevenue(String key, Map<String, dynamic> properties) {
  final value = properties[key];
  if (value == null) {
    return null;
  }

  // If value is numeric (int or double), convert to double.
  if (value is num) {
    return value.toDouble();
  } else if (value is String) {
    // Attempt to parse the string into a double.
    return double.tryParse(value);
  }

  // If it is neither numeric nor a valid string, return null.
  return null;
}