Skip to main content

median

Note

This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information.

Returns the median of the given numbers

namespace HH\Lib\Math;

function median(
  Container<num> $numbers,
): ?float;

To find the mean, see Math\mean().

Parameters​

Returns​

  • ?float