Web6 jun. 2024 · If you want list of elements from array or hashes, you use the @ sign. For example: @list = @$ref [ 1, 3..5 ]; @list = @$ref { 'name1', 'name2' }; 1st: $ref - returns reference to structure. $ says you get one value from variable 'ref' 2nd: @$ref - you dereference $ref. @ says that you want to access the list of items by that reference. WebReturning a Value from a Subroutine. A value can be returned from a subroutine by using the return() function. When this function is used, the subroutine executed is completed. The return value is a single value. Therefore in order to return an array or hash, create a reference first and return that value.

45.1. PL/Perl Functions and Arguments - PostgreSQL …

Web4 jun. 2016 · Returning multiple values to an array. You can also assign an array to hold the multiple return values from a Perl function. You do that like this: sub foo { return ('aaa', 'bbb', 'ccc'); } (@arr) = &foo (); print "@arr\n"; As you can see, most of the code is the same, except I now assign an array ( @arr) to contain the three return values from ... WebWhen you call a Perl subroutine all of the parameters in the call are aliased in @_. You can use them directly to affect the actual parameters, or copy them to prevent external action … the innsmouth cycle

perlobj - Perl object reference - Perldoc Browser

WebYou can create a reference to a variable or subroutine by using the backslash (\) operator. For example, the following subroutine returns a reference to the array @fruit. sub fruit_i_like () { my @fruit = ('apple', 'banana', 'orange'); return \@fruit; } The code to call this subroutine would look like: my $fruit = fruit_i_like (); WebFirst, in the subroutine &pops, we declared an empty array for storing elements that we removed from input arrays. Next, we looped over the @_ array to get the … WebTo pass an array or a hash to a subroutine, you must pass a reference that refers to the array or hash. Perl subroutine – returning values Implicit returning value. A … the innspectors nativity