varToInt function
Implementation
int varToInt(dynamic v) {
if (v == null) return 0;
if (v is int) return v;
if (v is double) return v.toInt();
if (v is bool) return v ? 1 : 0;
if (v is String) return int.tryParse(v) ?? (double.tryParse(v)?.toInt() ?? 0);
return 0;
}