HH\Vector::isEmpty

Checks if the current Vector is empty

public function isEmpty(): bool;

Returns

  • bool - true if the current Vector is empty; false otherwise.

Examples

$v = Vector {};
var_dump($v->isEmpty());

$v = Vector {'red', 'green', 'blue', 'yellow'};
var_dump($v->isEmpty());
Output
bool(true)
bool(false)