To fill an array with zeroes, use:
@a = (0) x 143; # 143 zeroes
Or if the array already has the length you want, and
you want to make every element zero, use:
@a = (0) x @a; # every element set to zero
But often, the best thing to do is just destroy what's in the array:
undef @a;
If you undefine the array, and then try to look at the elements,
they will be undefined, and an undefined array element behaves like 0
if you use it as a number. For example:
undef @a;
$z = $a[3] + 12;
print $z;
This prints 12.
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