MutableVector::filterWithKey

Returns a MutableVector containing the values of the current MutableVector that meet a supplied condition applied to its keys and values.

Description

public function filterWithKey(
  callable $fn,
): MutableVector<Tv>

Returns a MutableVector containing the values of the current MutableVector that meet a supplied condition applied to its keys and values.

Only keys and values that meet a certain criteria are affected by a call to filterWithKey(), while all values are affected by a call to mapWithKey().

Parameters

  • callable $fn - The callback containing the condition to apply to the MutableVector keys and values.

Return Values