HH\Lib\C\is_sorted
Returns true if the given Traversable
namespace HH\Lib\C;
function is_sorted<Tv>(
Traversable<Tv> $traversable,
?(function(Tv, Tv): num) $comparator = NULL,
): bool;
If two neighbouring elements compare equal, this will be considered sorted.
If no $comparator is provided, the <=>
operator will be used.
This will sort numbers by value, strings by alphabetical order
or by the numeric value, if the strings are well-formed numbers,
and DateTime/DateTimeImmutable by their unixtime.
To check the order of other types or mixtures of the aforementioned types, see C\is_sorted_by.
If the comparison operator <=>
is not useful on Tv
and no $comparator is provided, the result of is_sorted
will not be useful.
Time complexity: O((n * c), where c is the complexity of the comparator function (which is O(1) if not provided explicitly) Space complexity: O(n)
Parameters
Traversable<Tv>
$traversable
?(function(Tv, Tv): num) $comparator = NULL
Returns
bool