CODEWITHSUNDEEP
dart
Vinay Saurabh
Vinay Saurabh

Reputation: 121

How to generate a list of all alphabets (UpperCase) in dart?

Output expected from program

List<String> alphabets = [  "A",  "B",  "C",  "D",  "E",  "F",  "G",  "H",  "I",  "J",  "K",  "L",  "M",  "N",  "O",  "P",  "Q",  "R",  "S",  "T",  "U",  "V",  "W",  "X",  "Y",  "Z"  ];

Upvotes: 2

Views: 3956

Answers (3)

Bibek Saha
Bibek Saha

Reputation: 223

here is my single line answer

List.generate(26, (index) => print(String.fromCharCode(index+65)));

Upvotes: 10

Babak
Babak

Reputation: 318

You can use List.generate() to generate a list of desired type. The first parameter is the length of the desired list, which is the distance between Z to A character or simply 26. The second parameter is the function that map each index to your desired character.

var aCode = 'A'.codeUnitAt(0);
var zCode = 'Z'.codeUnitAt(0);
List<String> alphabets = List<String>.generate(
    zCode - aCode + 1,
    (index) => String.fromCharCode(aCode + index),
  );

Take a look at the List.generate constructor of the List class.

Upvotes: 8

Vinay Saurabh
Vinay Saurabh

Reputation: 121

The following program gives the desired output

void main() {
  List<String> alphabets=[];
  for(int i=65; i<=90; i++){
    alphabets.add(String.fromCharCode(i));
  }
  print(alphabets);
}

About String.fromCharCode read here

Upvotes: 5

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