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Seeded random number generators for JavaScript, ported to TypeScript. Based onhttps://github.com/shanewholloway/js-esm-seedrandom.

npm install ts-seedrandom

Each generator includes the following methods:

• quick - Default method used. Provides 32 bits of randomness in a float. Can either be called by calling generator instance directly (ex.generator()) or by name (ex.generator.quick()).
• double - Provides 56 bits of randomness.
• int32 - Providers a 32 bit (signed) integer.
• state - Provides internal generator state. Used for saving and restoring states.

import{prngAlea}from'ts-seedrandom';constaleaGenerator=prngAlea('seed');constfirstValue=aleaGenerator();constsecondValue=aleaGenerator();

You also have the option of saving and restoring state of your generator.

import{prngAlea}from'ts-seedrandom';constaleaGenerator=prngAlea('seed');constfirstValue=aleaGenerator();// Return internal generator state, which you can use in other generator instancesconststate=aleaGenerator.state();// This generator starts from the same state as first generator, but runs independentlyconstsecondAleaGenerator=prngAlea('seed',state);

The following PRNG algorithms are available:

1. prngAlea: Alea algorithm
2. prngArc4: ARC4 algorithm
3. prngTychei: Tyche-i algorithm
4. prngXor128: XorShift128 algorithm
5. prngXor4096: XorShift4096 algorithm
6. prngXorshift7: XorShift7 algorithm
7. prngXorwow: Xorwow algorithm

You can import and use any of these algorithms in the same way as demonstrated in the usage examples above.