parseDouble function

double? parseDouble(
  1. dynamic v,
  2. double? existing
)

Implementation

double? parseDouble(dynamic v, double? existing) {
  if (v == null) return existing;
  if (v is double) return v;
  if (v is int) return v.toDouble();
  if (v is String) return double.tryParse(v);
  return existing;
}