asDoubleOrNull function

double? asDoubleOrNull(
  1. Object? v
)

Implementation

double? asDoubleOrNull(Object? v) {
  if (v == null) return null;
  if (v is double) return v;
  if (v is num) return v.toDouble();
  if (v is String) return double.tryParse(v);
  return null;
}