HH\ImmSet::filter
Returns an ImmSet
containing the values of the current ImmSet
that
meet a supplied condition applied to each value
public function filter(
(function(Tv): bool) $callback,
): ImmSet<Tv>;
Only values that meet a certain criteria are affected by a call to
filter()
, while all values are affected by a call to map()
.
Guide
Parameters
(function(Tv): bool) $callback
- The callback containing the condition to apply to the currentImmSet
values.
Returns
ImmSet<Tv>
- anImmSet
containing the values after a user-specified condition is applied.
Examples
See Set::filter
for usage examples.