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async/	dir	-	0775	2026-09-14 10:03:34
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non-secure/	dir	-	0775	2026-09-14 10:03:34
url-alphabet/	dir	-	0775	2026-09-14 10:03:34
index.browser.cjs	file	1,117 B	0664	2026-09-14 10:03:30	edit
index.browser.js	file	1,103 B	0664	2026-09-14 10:03:34	edit
index.cjs	file	1,531 B	0664	2026-09-14 10:03:33	edit
index.d.cts	file	2,252 B	0664	2026-09-14 10:03:34	edit
index.d.ts	file	2,252 B	0664	2026-09-14 10:03:34	edit
index.js	file	1,514 B	0664	2026-09-14 10:03:34	edit
LICENSE	file	1,095 B	0664	2026-09-14 10:03:30	edit
nanoid.js	file	169 B	0664	2026-09-14 10:03:34	edit
package.json	file	2,283 B	0664	2026-09-14 10:03:34	edit
README.md	file	1,552 B	0664	2026-09-14 10:03:34	edit

editing: index.cjs

let crypto = require('crypto')

let { urlAlphabet } = require('./url-alphabet/index.cjs')

const POOL_SIZE_MULTIPLIER = 128
let pool, poolOffset

let fillPool = bytes => {
  if (bytes < 0 || bytes > 1024) throw new RangeError('Wrong ID size')
  try {
    if (!pool || pool.length < bytes) {
      pool = Buffer.allocUnsafe(bytes * POOL_SIZE_MULTIPLIER)
      crypto.randomFillSync(pool)
      poolOffset = 0
    } else if (poolOffset + bytes > pool.length) {
      crypto.randomFillSync(pool)
      poolOffset = 0
    }
  } catch (e) {
    pool = undefined
    throw e
  }
  poolOffset += bytes
}

let random = bytes => {
  fillPool((bytes |= 0))
  return pool.subarray(poolOffset - bytes, poolOffset)
}

let customRandom = (alphabet, defaultSize, getRandom) => {
  let mask = (2 << (31 - Math.clz32((alphabet.length - 1) | 1))) - 1

let step = Math.ceil((1.6 * mask * defaultSize) / alphabet.length)

return (size = defaultSize) => {
    if (size <= 0) return ''
    let id = ''
    while (true) {
      let bytes = getRandom(step)
      let i = step
      while (i--) {
        id += alphabet[bytes[i] & mask] || ''
        if (id.length === size) return id
      }
    }
  }
}

let customAlphabet = (alphabet, size = 21) =>
  customRandom(alphabet, size, random)

let nanoid = (size = 21) => {
  fillPool((size |= 0))
  let id = ''
  for (let i = poolOffset - size; i < poolOffset; i++) {
    id += urlAlphabet[pool[i] & 63]
  }
  return id
}

module.exports = { nanoid, customAlphabet, customRandom, urlAlphabet, random }

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