fill<T> function

List<T> fill<T>(List<T> array, dynamic value, [ int start = 0, int? end, ])

Fills elements of a List with a specified value within a given range.

This function fills elements of the provided list with the specified value from the start index (inclusive) up to, but not including, the end index (exclusive). If start is not provided, it defaults to 0, and if end is not provided, it defaults to the length of the list.

The list parameter is the List to be filled. The value parameter is the value to fill the list with. The start parameter is the start position (inclusive) where filling begins. The end parameter is the end position (exclusive) where filling ends.

Returns the modified list with the elements filled with the specified value.

Example:

var list1 = [1, 2, 3];
fill(list1, 'a');
print(list1); // Output: ['a', 'a', 'a']

var list2 = List<int>.filled(3, 0);
fill(list2, 2);
print(list2); // Output: [2, 2, 2]

var list3 = [4, 6, 8, 10];
fill(list3, '*', 1, 3);
print(list3); // Output: [4, '*', '*', 10]

Implementation

List<T> fill<T>(List<T> array, dynamic value, [int start = 0, int? end]) {
  end ??= array.length;
  for (int i = start; i < end; i++) {
    array[i] = value;
  }
  return array;
}