I'm iOS Developer and new for Flutter. In the Swift language If we want to repeat the same value for a specific time in the Array.
Ex.
If In the Array I want to repeat 0 for 5 times then I can do by one line of code like below.
let fiveZeros = Array(repeating: "0", count: 5)
print(fiveZeros)
// Prints "["0", "0", "0", "0", "0"]"
init(repeating:count:) function used.
So I'm looking for any function or code that works in Flutter.
I do googling but didn't find a solution.
In dart you can use the filled factory of List.
final list = List.filled(5, 0);
print(list); //-> [0, 0, 0, 0, 0]
See more in the list docs.
You can use the filled method like what @Edman answered. I just want to add one more way by using generate
final list = new List.filled(5, 0);
print(list);
final list1 = new List.generate(5, (index) {
return 0;
});
print(list1);
Starting from Dart 2.3.0 you can use conditional and loop initializers, so for your case it should be:
var fiveZeros = [for (var i = 0; i < 5; ++i) 0];
Everything becomes much flexible and powerful when you want to initialize by expression, not just constant:
var cubes = [for (var i = 0; i < 5; ++i) i * i * i];
is the same as [0, 1, 8, 27, 64].
Conditional elements are also essential taking into account the possibility to build a list of widgets where some of them depend on the state or platform.
More details here
Use List.generate method.
var list = List.generate(5, (i) => 'Z');
