Random Number Generating Methods

These methods create reproducible sequences of random numbers given an initial seed value.

This methods rely on the pure-rand project.

random

Generates random numbers using the Mersenne Twister generator whose values are within the range 0 to 0xffffffff.

Usage
Type Definition
Usage
const SEED = 5;
const sequence: Seq<number> = random(SEED);
Type Definition
type random = (seed = DEFAULT_SEED) => Seq<number>;

mersenne

Generates random numbers using the Mersenne Twister generator whose values are within the range 0 to 0xffffffff.

Usage
Type Definition
Usage
const SEED = 5;
const sequence: Seq<number> = mersenne(SEED);
Type Definition
type mersenne = (seed = DEFAULT_SEED) => Seq<number>;

xorshift128plus

Generates random numbers using the xorshift128+ generator whose values are within the range -0x80000000 to 0x7fffffff.

Usage
Type Definition
Usage
const SEED = 5;
const sequence: Seq<number> = xorshift128plus(SEED);
Type Definition
type xorshift128plus = (seed = DEFAULT_SEED) => Seq<number>;

xoroshiro128plus

Generates random numbers using the xoroshiro128+ generator whose values are within the range -0x80000000 to 0x7fffffff.

Usage
Type Definition
Usage
const SEED = 5;
const sequence: Seq<number> = xoroshiro128plus(SEED);
Type Definition
type xoroshiro128plus = (seed = DEFAULT_SEED) => Seq<number>;

congruential

Generates random numbers using a Linear Congruential generator whose values are within the range 0 to 0x7fff.

Usage
Type Definition
Usage
const SEED = 5;
const sequence: Seq<number> = congruential(SEED);
Type Definition
type congruential = (seed = DEFAULT_SEED) => Seq<number>;

congruential32

Generates random numbers using a Linear Congruential generator whose values are within the range 0 to 0xffffffff.

Usage
Type Definition
Usage
const SEED = 5;
const sequence: Seq<number> = congruential32(SEED);
Type Definition
type congruential32 = (seed = DEFAULT_SEED) => Seq<number>;