HH\Set::remove

Removes the specified value from the current Set

public function remove(
  Tv $val,
): Set<Tv>;

Future changes made to the current Set ARE reflected in the returned Set, and vice-versa.

Parameters

  • Tv $val

Returns

Examples

This example shows that removing a value that doesn't exist in the Set has no effect:

$s = Set {'red', 'green'};

// Remove 'red' from the Set
$s->remove('red');
var_dump($s);

// Remove 'red' again (has no effect)
$s->remove('red');
var_dump($s);
Output
object(HH\Set)#1 (1) {
  string(5) "green"
}
object(HH\Set)#1 (1) {
  string(5) "green"
}