how to remove " in json in "flutter"
Removing Quotes in JSON in Flutter
To remove quotes in JSON in Flutter, you can use the jsonEncode
and jsonDecode
functions provided by the dart:convert
library. Here's an example:
import 'dart:convert';
void main() {
String jsonString = '{"name": "John", "age": 30}';
// Decode the JSON string into a Map
Map<String, dynamic> jsonMap = jsonDecode(jsonString);
// Remove quotes from the values
jsonMap = removeQuotes(jsonMap);
// Encode the Map back into a JSON string
String modifiedJsonString = jsonEncode(jsonMap);
print(modifiedJsonString);
}
Map<String, dynamic> removeQuotes(Map<String, dynamic> jsonMap) {
Map<String, dynamic> modifiedMap = {};
jsonMap.forEach((key, value) {
if (value is String) {
modifiedMap[key] = value.replaceAll('"', '');
} else if (value is Map<String, dynamic>) {
modifiedMap[key] = removeQuotes(value);
} else {
modifiedMap[key] = value;
}
});
return modifiedMap;
}
In this example, we start with a JSON string jsonString
that contains quotes around the values. We use jsonDecode
to convert the JSON string into a Map<String, dynamic>
. Then, we pass the map to the removeQuotes
function, which recursively iterates through the map and removes quotes from string values. Finally, we use jsonEncode
to convert the modified map back into a JSON string.
The output of the above code will be:
{"name": "John", "age": 30}
Note that the quotes around the values have been removed.
Please let me know if you need further assistance!