---
name: "HTML::Widget::Filter::Callback"
section: "3pm"
platform: "linux"
package: "libhtml-widget-perl"
version: "1.11-7"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/HTML::Widget::Filter::Callback"
---

# HTML::Widget::Filter::Callback(3pm)

Lower Case Filter

## NAME

HTML::Widget::Filter::Callback - Lower Case Filter

## SYNOPSIS

```
    my $f = $widget->filter( 'Callback', 'foo' )->callback(sub {
        my $value=shift;
        $value =~ s/before/after/g;
        return $value;
    });
```

## DESCRIPTION

Callback Filter.

## METHODS

## callback

Argument: \\&callback

Define the callback to be used for filter.

"cb" is an alias for "callback".

### filter

## AUTHOR

Lyo Kato, `"lyo.kato@gmail.com"`

## LICENSE

This library is free software, you can redistribute it and/or modify it under the same terms as Perl itself.