HH\Lib\Math\sum

Requires the Hack Standard Library to be installed.

Facebook Engineer?

This function is available as Math\sum() in Facebook's www repository.

Returns the integer sum of the values of the given Traversable

namespace HH\Lib\Math;

function sum(
  Traversable<int> $traversable,
): int;

For a float sum, see Math\sum_float().

Parameters