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I need to convert List<String> into a String in the dart.
I want to extract the value of the list from preferences. I have tried this implementation but it is only giving me the last value.
Future<List<String>> services = SharedPrefSignUp.getSelectedServices(); services.then((onValue){ List<String>servicesList=onValue; selectServicesText=servicesList.join(","); }); 
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Using String join() Dart's List class has an instance method join() that can be used to join a List of any type to a String . Below is a simple example in which we are going to join a list of strings into a string. Without passing the separator parameter, the default separator (empty string) will be used.
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.
To convert a list to a string, use Python List Comprehension and the join() function. The list comprehension will traverse the elements one by one, and the join() method will concatenate the list's elements into a new string and return it as output.
if you know you have List<String> then you can use join() function provided by a flutter.
var list = ['one', 'two', 'three']; var stringList = list.join(""); print(stringList); //Prints "onetwothree" Simple and short. ;)
And you can use it like this:
List<String> servicesList = ["one", "Two", "Thee"]; print(servicesList.join("")); If you want to convert your List<String> to a coma septated String, you can do this
List<String> list =["one", "Two", "Thee"]; print(list.join(",")); // Output will be like this : one,Two,Thee Join() method Converts each element to a String and concatenates the strings.
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