@unrest/random

a pseudo random number generator that spawns other pseudo random number generators

Usage no npm install needed!

<script type="module">
  import unrestRandom from 'https://cdn.skypack.dev/@unrest/random';
</script>

README

ur-random

This is a pseudo random number generator (PRNG) with a second stream of randomness for avoiding "the butterfly effect". Checkout the gh-page for more details:

https://chriscauley.github.io/ur-random/

Installation

npm install ur-random

Usage

import Random from 'ur-random'

const random = Random(1234)
random() // returns a float between 0 and 1, just like Math.random()

  • random() - A float [0,0.999...]

  • random.int() - An int [0,2147483646]

  • random.int(10) - I'm thinking of a number between 0 and 9

  • random.int(1,11) - I'm thinking of a number between 1 and 10

  • random.choice(["heads","tails"]) - Flip a coin!

  • random.shuffle(range(5)) - Shuffled array, [0-4]

  • random.reset() - Reset the PRNG

  • random() - Same float as the first row