My String
{id: produk12549, nama: Abcd, url: myUrl}
How change to :
{"id": "produk12549", "nama": "Abcd", "url": "myUrl"}
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This has already been answered here: stackoverflow.com/a/64707588/17769156Dartist– Dartist2022-02-27 16:05:49 +00:00Commented Feb 27, 2022 at 16:05
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i try, but error like this : FormatException (FormatException: Unexpected character (at character 38) {"id": "produk12549", "nama": "ASOY" "ROYAL" "BIRU" "100gr" "TG" "pn", "url...user18223348– user182233482022-02-27 16:11:46 +00:00Commented Feb 27, 2022 at 16:11
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1With which string did you try? Please share the code you're trying to execute, preferrably a snipet that will work in Dartpad so anyone can try it and fix it.Dartist– Dartist2022-02-27 16:23:50 +00:00Commented Feb 27, 2022 at 16:23
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3 Answers
import 'dart:convert';
void main() {
Map<String, dynamic> result = jsonDecode("""{"id": "produk12549", "nama": "Abcd", "url": "myUrl"}""");
print(result);
}
You can use string manipulation to convert it to a valid json string and then encode for json. ie:
import 'dart:convert';
void main() {
var s = "{id: produk12549, nama: Abcd, url: myUrl}";
var kv = s.substring(0,s.length-1).substring(1).split(",");
final Map<String, String> pairs = {};
for (int i=0; i < kv.length;i++){
var thisKV = kv[i].split(":");
pairs[thisKV[0]] =thisKV[1].trim();
}
var encoded = json.encode(pairs);
print(encoded);
}
Comments
void main(List<String> args) {
const str = '{id: produk12549, nama: Abcd, url: myUrl}';
var entries = str
.substring(1,str.length-1)
.split(RegExp(r',\s?'))
.map((e) => e.split(RegExp(r':\s?')))
.map((e) => MapEntry(e.first, e.last));
var result = Map.fromEntries(entries);
print(result);
}
Output:
{id: produk12549, nama: Abcd, url: myUrl}
3 Comments
Ουιλιαμ Αρκευα
Bro, the output is a type: Map<String, String>, that is, keys and values are String type. Your question is about convert a value of String type into a value of Map<String,String> type. But if you need (which is really rare) to explicitly show the char
" then use this line: .map((e) => MapEntry('"'+e.first+'"', '"'+e.last+'"'))
Nux
What if there array value like
{urls:[one,two]} and what if the value contains two words separated by space like {name: "This is my name"}?. Thanks