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Is there a method in Dart like the String.join() method in Java & c#?
input:
nums: ["20", "3005", "2"] output:
nums = "2030052" 
769
Create a list named colors . List<String> colors = ['Blue', 'Red', 'Black', 'Yellow', 'White', 'Pink']; Then, convert the List colors to a JSON string using the dart:convert library's built-in jsonEncode() function. String jsonColors = jsonEncode(colors);
In dart and flutter, this example converts a list of dynamic types to a list of Strings. map() is used to iterate over a list of dynamic strings. To convert each element in the map to a String, toString() is used. Finally, use the toList() method to return a list.
join is a method of the List class, rather than String:
List<String> yourList = ["20", "3005", "2"]; // To test that the above the above yourList.join() == '2030052'; // true yourList.join(',') == '20,3005,2'; // true, with "," delimiter This might not be the best solution, but you can reduce a collection to a single value by iteratively combining elements of the collection using the reduce method in Dart Lists.
String nums = numsList.reduce((value, element) => value + ',' + element); You have to remember that, the iterable must have at least one element. If it has only one element, that element is returned.
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