Class SeededRandom

A seeded pseudo-random number generator that produces reproducible sequences. Based on the TC39 Seeded Random proposal.

Index

Constructors

Methods

fromSeed fromState fromFixed random seed getState setState number int bigint bytes fillBytes

Constructors

constructor

new SeededRandom(seed): SeededRandom
Creates a new seeded random generator
Parameters
- seed: number | Uint8Array<ArrayBufferLike>
  Seed value or Uint8Array (up to 32 bytes)
Returns SeededRandom
- Defined in RandomUtils.ts:68

Methods

`Static` fromSeed

fromSeed(seed): SeededRandom
Factory method that requires exact 32-byte seed
Parameters
- seed: Uint8Array<ArrayBufferLike>
  Exactly 32 bytes of seed data
Returns SeededRandom
New SeededRandom instance
- Defined in RandomUtils.ts:91

`Static` fromState

fromState(state): SeededRandom
Factory method that creates generator from state
Parameters
- state: number
  State data (simplified to number for this implementation)
Returns SeededRandom
New SeededRandom instance
- Defined in RandomUtils.ts:106

`Static` fromFixed

fromFixed(byte): SeededRandom
Factory method for simple integer seeds
Parameters
- byte: number
  Integer between 0-255
Returns SeededRandom
New SeededRandom instance
- Defined in RandomUtils.ts:117

random

random(): number
Generate a random number between 0 and 1 (exclusive)

Returns number
Random number in [0,1)
- Defined in RandomUtils.ts:133

seed

seed(): Uint8Array<ArrayBufferLike>
Generate a new seed for creating child PRNGs

Returns Uint8Array<ArrayBufferLike>
32-byte Uint8Array suitable for seeding
- Defined in RandomUtils.ts:141

getState

getState(): number
Get current generator state

Returns number
Current state as number
- Defined in RandomUtils.ts:153

setState

setState(state): this
Set generator state
Parameters
- state: number
  State to set
Returns this
This instance for chaining
- Defined in RandomUtils.ts:162

number

number(lo, hi, step?): number
Generate random number in range
Parameters
- lo: number
  Lower bound
- hi: number
  Upper bound
- Optional step: number
  Optional step size
Returns number
Random number in specified range
- Defined in RandomUtils.ts:174

int

int(lo, hi, step?): number
Generate random integer in range
Parameters
- lo: number
  Lower bound (inclusive)
- hi: number
  Upper bound (inclusive)
- Optional step: number
  Optional step size
Returns number
Random integer in specified range
- Defined in RandomUtils.ts:185

bigint

bigint(lo, hi, step?): bigint
Generate random BigInt in range
Parameters
- lo: bigint
  Lower bound (inclusive)
- hi: bigint
  Upper bound (inclusive)
- Optional step: bigint
  Optional step size
Returns bigint
Random BigInt in specified range
- Defined in RandomUtils.ts:196

bytes

bytes(n): Uint8Array<ArrayBufferLike>
Generate random bytes
Parameters
- n: number
  Number of bytes to generate
Returns Uint8Array<ArrayBufferLike>
Uint8Array of random bytes
- Defined in RandomUtils.ts:205

fillBytes

fillBytes<T>(buffer, start?, end?): T
Fill buffer with random bytes
Type Parameters
- T extends ArrayBuffer | ArrayBufferView<ArrayBufferLike>
Parameters
- buffer: T
  Buffer to fill
- Optional start: number
  Start position (optional)
- Optional end: number
  End position (optional)
Returns T
The filled buffer
- Defined in RandomUtils.ts:216