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nanoid
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async
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/var/www/html/tpid-jsd/node_modules/nanoid/async/index.js
import crypto from 'crypto' import { urlAlphabet } from '../url-alphabet/index.js' let random = bytes => new Promise((resolve, reject) => { crypto.randomFill(Buffer.allocUnsafe(bytes), (err, buf) => { if (err) { reject(err) } else { resolve(buf) } }) }) let customAlphabet = (alphabet, defaultSize = 21) => { let mask = (2 << (31 - Math.clz32((alphabet.length - 1) | 1))) - 1 let step = Math.ceil((1.6 * mask * defaultSize) / alphabet.length) let tick = (id, size = defaultSize) => random(step).then(bytes => { let i = step while (i--) { id += alphabet[bytes[i] & mask] || '' if (id.length === size) return id } return tick(id, size) }) return size => tick('', size) } let nanoid = (size = 21) => random(size).then(bytes => { let id = '' while (size--) { id += urlAlphabet[bytes[size] & 63] } return id }) export { nanoid, customAlphabet, random }