Current File : /home/tradevaly/text.tradevaly.com.bd/node_modules/nanoid/index.browser.js |
import { urlAlphabet } from './url-alphabet/index.js'
if (process.env.NODE_ENV !== 'production') {
if (
typeof navigator !== 'undefined' &&
navigator.product === 'ReactNative' &&
typeof crypto === 'undefined'
) {
throw new Error(
'React Native does not have a built-in secure random generator. ' +
'If you don’t need unpredictable IDs use `nanoid/non-secure`. ' +
'For secure IDs, import `react-native-get-random-values` ' +
'before Nano ID.'
)
}
if (typeof msCrypto !== 'undefined' && typeof crypto === 'undefined') {
throw new Error(
'Import file with `if (!window.crypto) window.crypto = window.msCrypto`' +
' before importing Nano ID to fix IE 11 support'
)
}
if (typeof crypto === 'undefined') {
throw new Error(
'Your browser does not have secure random generator. ' +
'If you don’t need unpredictable IDs, you can use nanoid/non-secure.'
)
}
}
let random = bytes => crypto.getRandomValues(new Uint8Array(bytes))
let customRandom = (alphabet, size, getRandom) => {
let mask = (2 << (Math.log(alphabet.length - 1) / Math.LN2)) - 1
let step = -~((1.6 * mask * size) / alphabet.length)
return () => {
let id = ''
while (true) {
let bytes = getRandom(step)
let j = step
while (j--) {
id += alphabet[bytes[j] & mask] || ''
if (id.length === size) return id
}
}
}
}
let customAlphabet = (alphabet, size) => customRandom(alphabet, size, random)
let nanoid = (size = 21) => {
let id = ''
let bytes = crypto.getRandomValues(new Uint8Array(size))
while (size--) {
let byte = bytes[size] & 63
if (byte < 36) {
id += byte.toString(36)
} else if (byte < 62) {
id += (byte - 26).toString(36).toUpperCase()
} else if (byte < 63) {
id += '_'
} else {
id += '-'
}
}
return id
}
export { nanoid, customAlphabet, customRandom, urlAlphabet, random }