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Idiom #314 Fill array with value

Set all the elements in the array x to the same value v

my @x = ($v) x $n;
my @x = (undef) x $n; 

foreach (@x) { $_ = $v }
#include <array>
x.fill(v);
x = v
for i := range x {
	x[i] = v
}
func fill[T any](x []T, v T) {
	for i := range x {
		x[i] = v
	}
}
import static java.util.Arrays.fill;
fill(x, v);
for i := Low(x) to High(x) do x[i] := v;
set_all_elements_to_same_value(X, V) :-
    length(X, Length),
    length(FilledList, Length),
    maplist(=(V), FilledList, X).
x[:] = [v] * len(x)
x.fill(v)
x.fill(v);
New implementation...
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programming-idioms.org 
my @x = ($v) x $n;
my @x = (undef) x $n; 

foreach (@x) { $_ = $v }
x.fill(v);
x = v
for i := range x {
	x[i] = v
}
func fill[T any](x []T, v T) {
	for i := range x {
		x[i] = v
	}
}
fill(x, v);
for i := Low(x) to High(x) do x[i] := v;
set_all_elements_to_same_value(X, V) :-
    length(X, Length),
    length(FilledList, Length),
    maplist(=(V), FilledList, X).
x[:] = [v] * len(x)
x.fill(v)
x.fill(v);