Ds\Pair::isEmpty
PHP function
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Returns whether the pair is empty
Description
Ds\Pair::isEmpty(): bool
Returns whether the pair is empty.
Parameters Parameters
Return Values
Returns true if the pair is empty, false otherwise.
Examples
Ds\Pair::isEmpty() example
php
<?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:
output
bool(false)
bool(true)