NAME

PerlX::ScopeFunction -- new keywords for creating scopes.

SYNOPSIS

Use with keyword to constraint the result of the given expression to a smaller lexical scope.

with ( grep { $_ % 2 == 0 } @input ) {
    my @even_nums = @_;

    say "There are " . scalar(@even_nums) . " even numbers";
}

DESCRIPTION

Scope functions can be used to create small lexical scope, inside which the results of an given expression are used, but not outside.

with (EXPR) BLOCK

The with keyword can be used to bring the result of an given EXPR to a smaller scope (code block):

with ( EXPR ) BLOCK

The EXPR are evaluated in list context, and the result (a list) is available inside BLOCK as @_. The conventional topic variable $_ is also assigned the last value of the list ($_[-1]).

AUTHOR

Kang-min Liu <gugod@gugod.org>

LICENCE

The MIT License

DISCLAIMER OF WARRANTY

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