asDoubles method
Implementation
double asDoubles(List<String> keys) {
for (final String key in keys) {
final value = this[key];
if (value == null) {
continue;
}
if (value is double) {
return value;
}
try {
String value0 = value.toString();
if (value0.isEmpty) {
return 0;
}
final result = double.parse(value0);
return result;
} catch (e) {
_print('json 解析异常,异常值,期望double值:"$key":$value');
}
}
return 0.0;
}