Dart list get the longest string-CodePudding

I want to get first longest string ? How can i do this ?

List<String> list = ['hi', 'hello', 'frozen', 'big mistake', 'cool daddy'];

CodePudding user response：

this is the shortest solution, which will return the longest string:

list.reduce((a, b) {
   return a.length > b.length ? a : b;
})

another alternative is:

list.sort((a, b) {
   return b.length - a.length;
});
print(list[0]);

CodePudding user response：

Check the below function i have done in my project to get the longest string.

long_string(arr) {
        var longest = arr[0];
        for (var i = 1; i < arr.length; i  ) {
            if (arr[i].length > longest.length) {
                longest = arr[i];
            }
        }
        return longest;
    }

And you can call the function like below to get the longest string

var arr = ["Orebro", "Sundsvall", "Hudriksvall", "Goteborgsdsdsds"];
  print(long_string(arr));

CodePudding user response：

final longestString = list.fold<String>('', 
  (previousValue, element) => 
    element.length > previousValue.length ? element : previousValue)