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Ds\Sequence::first

(PECL ds >= 1.0.0)

Ds\Sequence::firstReturns the first value in the sequence

Açıklama

abstract public Ds\Sequence::first(): mixed

Returns the first value in the sequence.

Bağımsız Değişkenler

Bu işlevin bağımsız değişkeni yoktur.

Dönen Değerler

The first value in the sequence.

Hatalar/İstisnalar

UnderflowException if empty.

Örnekler

Örnek 1 Ds\Sequence::first() example

<?php
$sequence
= new \Ds\Vector([1, 2, 3]);
var_dump($sequence->first());
?>

Yukarıdaki örnek şuna benzer bir çıktı üretir:

int(1)
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