Perl - Get value in nested array of arrays

Question

I have a variable ($issue) that contains various values that I need to pull a single value (emailAddress) from. The contents of $issue (via Data::Dump) is:

'fields' => {
    'reporter' => {
        'name' => 'jeremywilson',
            'displayName' => 'Jeremy Wilson',
            'key' => '15429',
            'emailAddress' => '[email protected]',
            'timeZone' => 'America/New_York',
            'active' => bless( do{\(my $o = 1)}, 'JSON::PP::Boolean' )
    },
    'customfield' => [
        {
            'active' => $VAR1->{'fields'}{'reporter'}{'active'},
            'timeZone' => 'America/New_York',
            'emailAddress' => '[email protected]',
            'key' => 'mexample',
            'name' => 'mexample',
            'displayName' => 'Mike Example'
        }
    ],
}

I get the first email via $issue->{fields}->{'reporter'}->{'emailAddress'} but how do I get the value from customfield?

$issue->{fields}->{customfield}[0]->{emailAddress}? A minimal reproducible example would help... — Robert
– Robert, Commented May 6, 2021 at 19:19
Or you could use $issue->{fields}{customfield}[0]{emailAddress} to make record shorter. — Polar Bear
– Polar Bear, Commented May 7, 2021 at 0:08

David Dyck · Accepted Answer · 2021-05-07 06:22:49Z

1

The comments include two answers

$issue->{fields}->{customfield}[0]->{emailAddress}

and a shorter, but also correct

$issue->{fields}{customfield}[0]{emailAddress}

These answer the question that was asked, but likely, more clarification is needed for a general answer, for example, when there are more than one customfield, or if customfield is optional, how will the data be represented?

answered May 7, 2021 at 6:22

David Dyck

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