---
name: "List::Objects::WithUtils::Hash::Typed"
section: "3pm"
platform: "linux"
package: "liblist-objects-withutils-perl"
version: "2.028003-5"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/List::Objects::WithUtils::Hash::Typed"
---

# List::Objects::WithUtils::Hash::Typed(3pm)

Type-checking hash objects

## NAME

List::Objects::WithUtils::Hash::Typed - Type-checking hash objects

## SYNOPSIS

```
  use List::Objects::WithUtils 'hash_of';
  use Types::Standard -all;
  my $arr = hash_of Int() => ( foo => 1, bar => 2 );
```

## DESCRIPTION

These are type-checking hash objects; values are checked against the specified type when the object is constructed or new elements are added.

The first argument passed to the constructor should be a Type::Tiny type:

```
  use Types::Standard -all;
  my $hash = hash_of Int() => ( foo => 1 );
```

If the initial type-check fails, a coercion is attempted.

This class consumes the following roles, which contain most of the relevant documentation:

List::Objects::WithUtils::Role::Hash

List::Objects::WithUtils::Role::Hash::Typed

Also see Types::Standard, List::Objects::Types

### hash\_of

Creates a new typed hash object.

## AUTHOR

Jon Portnoy \<avenj@cobaltirc.org\> with significant contributions from Toby Inkster (CPAN: TOBYINK)