The array or hash is empty in Perl

There is no bool type in Perl

There is no bool type in Perl, and all judgments are made by numeric types and string types.

What type is False

There are only three scalars, the number 0, the empty string "", and the string ' 0 ' ("0").

The vector has an empty array, and an empty hash.

To determine whether an array or hash is empty

As with scalars, you can simply place an array or hash in an if statement

My @list = ();
if (@list) {
    Print "Not empty!\n";
}

My%hash = ();
if (%hash) {
    Print "Not empty!\n";
}

The array or hash is empty in Perl