Secure, sequential (n, N) sampling without replacement

var sample = require('secure-sample')

sample(3, 10) // [0, 5, 9]

Random order sample:

var sample = require('secure-sample')
var shuffle = require('secure-shuffle')

shuffle(sample(3, 10)) // [6, 2, 8]

Will return an array with sampleSize number of unique samples from the uniform distribution [0, populationSize) (populationSize exclusive). The samples will be sequential, so you may want to shuffle them. See Related for relevant module.

sampleSize and populationSize must be safe integers. sampleSize must not be larger than populationSize. If any of these conditions are violated, an error will be thrown. Something like unassertify

npm install secure-shuffle

• secure-random-uniform: Generate secure, random, uniform integers, compensating for modulo bias
• secure-shuffle: Shuffle an array using secure-random-uniform as the RNG

John D. Cook on Stack Overflow

ISC