The RecursiveMapConverter class allows you to convert arbitrary values into map objects using extended conversion rules.
Description
The RecursiveMapConverter class allows you to convert arbitrary values into map objects using extended conversion rules.
Important points:
- This class is similar to MapConverter. The difference is that it recursively converts all values stored in objects and arrays.
Instance methods
toMap
Converts a value into a map object or returns an empty map when the conversion is not possible.
static
dynamic toMap(value)
- value: dynamic - value to convert.
- returns: dynamic - map object or empty map when the conversion is not supported.
toMapWithDefault
Converts a value into a map object or returns a default value when the conversion is not possible.
static
dynamic toMapWithDefault(value, Map<String, dynamic> defaultValue)
- value: dynamic - value to convert.
- defaultValue: Map<String, dynamic> - default value.
- returns: dynamic - map object or empty map when the conversion is not supported.
toNullableMap
Converts a value into a map object or returns null when the conversion is not possible.
static
dynamic toNullableMap(value)
- value: dynamic - value to convert.
- returns: dynamic - map object or null when the conversion is not supported.
Examples
var value1 = RecursiveMapConverted.toNullableMap('ABC'); // Result: null
var value2 = RecursiveMapConverted.toNullableMap({ 'key': 123 }); // Result: { 'key': 123 }
var value3 = RecursiveMapConverted.toNullableMap([1,[2,3]); // Result: { '0': 1, { '0': 2, '1': 3 } }