Ds\Pair::isEmpty

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    Ds\Pair::isEmpty — Returns whether the pair is empty

    Description

    publicDs\Pair::isEmpty(): bool

    Returns whether the pair is empty.

    Parameters

    This function has no parameters.

    Return Values

    Returns true if the pair is empty, false otherwise.

    Examples

    Example #1 Ds\Pair::isEmpty() example

    <?php
    $a     = new \Ds\Pair("a", 1);
    $b = new \Ds\Pair();

    var_dump($a->isEmpty());
    var_dump($b->isEmpty());
    ?>

    The above example will output something similar to:

    bool(false) bool(true)
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