# Utf8Decoder constructor

const Utf8Decoder({bool allowMalformed: false })

Instantiates a new Utf8Decoder.

The optional `allowMalformed` argument defines how convert deals with invalid or unterminated character sequences.

If it is `true` convert replaces invalid (or unterminated) character sequences with the Unicode Replacement character `U+FFFD` (�). Otherwise it throws a FormatException.

## Implementation

    const Utf8Decoder({bool allowMalformed = false})
        : _allowMalformed = allowMalformed;