class

Random

@Js
abstract class Random : Obj

Random provides different implementation of random number generators with more flexibility than the methods available in sys. Also see Int.random, Float.random, Range.random, and List.random.

methods next

Generate 64-bit integer within the given range

nextFloat

Generate 64-bit floating point number between 0.0f and 1.0f

makeSecure

Construct a cryptographically strong random number generator

nextBool

Generate random boolean

nextBuf

Generate a randomized number of bytes

makeSeeded

Construct a repeatable, seeded random number generator

makeSecure static Random makeSecure()

Construct a cryptographically strong random number generator.

makeSeeded static Random makeSeeded(Int seed)

Construct a repeatable, seeded random number generator.

next abstract Int next(Range? r)

Generate 64-bit integer within the given range. If range is null, assume full range of 64-bit integers

nextBool abstract Bool nextBool()

Generate random boolean.

nextBuf abstract Buf nextBuf(Int size)

Generate a randomized number of bytes.

nextFloat abstract Float nextFloat()

Generate 64-bit floating point number between 0.0f and 1.0f.

Haxall 4.0.5 ∙ 24-Feb-2026 14:33 EST