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Float

hphp/hack/manual/hsl/Functions/HH.Lib.SecureRandom/float.md

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:::info[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 a cryptographically secure random float in the range [0.0, 1.0) (i.e. the return value is >= 0.0 and < 1.0)

Hack
namespace HH\Lib\SecureRandom;

function float(): float;

For pseudorandom floats, see PseudoRandom\float.

Returns

  • float
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