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# These are supported funding model platforms | ||
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github: JoakimCh # Replace with up to 4 GitHub Sponsors-enabled usernames e.g., [user1, user2] | ||
patreon: # Replace with a single Patreon username | ||
open_collective: # Replace with a single Open Collective username | ||
ko_fi: joakimch # Replace with a single Ko-fi username | ||
tidelift: # Replace with a single Tidelift platform-name/package-name e.g., npm/babel | ||
community_bridge: # Replace with a single Community Bridge project-name e.g., cloud-foundry | ||
liberapay: jlc # Replace with a single Liberapay username | ||
issuehunt: # Replace with a single IssueHunt username | ||
otechie: # Replace with a single Otechie username | ||
custom: [buymeacoffee.com/JoakimCh] # Replace with up to 4 custom sponsorship URLs e.g., ['link1', 'link2'] |
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const scriptDirectory = './'//dirname(fileURLToPath(import.meta.url))+pathSep | ||
const stopOnError = false | ||
let numErrors = 0 | ||
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const dirents = Deno.readDirSync(scriptDirectory, {withFileTypes: true}) | ||
for (const dirent of dirents) { | ||
if (dirent.isFile) { | ||
if (dirent.name.startsWith('example_') && dirent.name.endsWith('.js')) { | ||
console.log('Running '+dirent.name+'... ') | ||
try { | ||
const module = await import(scriptDirectory+dirent.name) | ||
} catch (error) { | ||
console.error(error) | ||
if (stopOnError) { | ||
Deno.exit(1) | ||
} | ||
numErrors ++ | ||
} | ||
} | ||
} | ||
} | ||
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if (numErrors) { | ||
// Deno.exitCode = 1 | ||
console.error('There were '+numErrors+' failed examples!') | ||
} else { | ||
console.log('Done.') | ||
} |
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#!/usr/bin/env bash | ||
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deno run --import-map=import_map.json --allow-read deno_runAll.js |
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<!DOCTYPE html><meta charset="utf-8"> | ||
<!--script type="importmap" src="import_map.json"></script--> | ||
<script type="importmap"> | ||
{ | ||
"imports": { | ||
"pluggable-prng": "./node_modules/pluggable-prng/source/pluggablePrng.js" | ||
} | ||
} | ||
</script> | ||
<script type="module" src="example_1.js"></script> | ||
Check your console! :) |
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import { | ||
PluggablePRNG, | ||
RandomGenerator_Alea, | ||
SeedInitializer_Alea, | ||
RandomGenerator_Mulberry32, | ||
RandomGenerator_Sfc32, | ||
RandomGenerator_Pcg32, | ||
SeedInitializer_Uint32, | ||
SeedInitializer_Uint64 | ||
} from 'pluggable-prng' | ||
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const log = console.log | ||
const wideNumber = new Intl.NumberFormat('fullwide', {maximumSignificantDigits: 21}) | ||
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log('Alea') | ||
await prngDemoOutput(new PluggablePRNG({ | ||
seed: 'Hello World', | ||
RandomGenerator: RandomGenerator_Alea, | ||
SeedInitializer: SeedInitializer_Alea | ||
})) | ||
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log('\nMulberry32') | ||
await prngDemoOutput(new PluggablePRNG({ | ||
seed: 'Hello World', | ||
RandomGenerator: RandomGenerator_Mulberry32, | ||
SeedInitializer: SeedInitializer_Uint32 | ||
})) | ||
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log('\nSfc32') | ||
await prngDemoOutput(new PluggablePRNG({ | ||
seed: 'Hello World', | ||
RandomGenerator: RandomGenerator_Sfc32, | ||
SeedInitializer: SeedInitializer_Uint32 | ||
})) | ||
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log('\nPcg32') | ||
await prngDemoOutput(new PluggablePRNG({ | ||
seed: 'Hello World', | ||
RandomGenerator: RandomGenerator_Pcg32, | ||
SeedInitializer: SeedInitializer_Uint64 | ||
})) | ||
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async function prngDemoOutput(prng, iterations=5) { | ||
await prng.readyPromise // if set | ||
log('\nrandomFloat32()') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomFloat32() | ||
log(wideNumber.format(n), n.toString(2)) | ||
} | ||
log('\nrandomFloat32(4)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomFloat32(4) | ||
log(wideNumber.format(n), n.toString(2)) | ||
} | ||
log('\nrandomFloat32(5,7)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomFloat32(5,7) | ||
log(wideNumber.format(n), n.toString(2)) | ||
} | ||
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log('\nrandomFloat64()') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomFloat64() | ||
log(wideNumber.format(n), n.toString(2)) | ||
} | ||
log('\nrandomFloat64(4)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomFloat64(4) | ||
log(wideNumber.format(n), n.toString(2)) | ||
} | ||
log('\nrandomFloat64(5,7)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomFloat64(5,7) | ||
log(wideNumber.format(n), n.toString(2)) | ||
} | ||
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log('\nrandomInteger(-0xFFFF_FFFF, 0xFFFF_FFFF)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomInteger(-0xFFFF_FFFF, 0xFFFF_FFFF) | ||
log(n) | ||
} | ||
log('\nrandomInteger(0, 4)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomInteger(0, 4) | ||
log(n) | ||
} | ||
log('\nrandomInteger(0, Number.MAX_SAFE_INTEGER)') | ||
log(integerToHex(2**53-1, 8), '== 53 bits all set (Number.MAX_SAFE_INTEGER)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomInteger(0, Number.MAX_SAFE_INTEGER) | ||
log(integerToHex(n, 8)) | ||
} | ||
log('\nrandomInteger(0, FF_FFFF_FFFF)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomInteger(0, 0xFF_FFFF_FFFF) | ||
log(integerToHex(n, 8)) | ||
} | ||
log('\nrandomInteger(FFFF_FFFF_0000, FFFF_FFFF_FFFF)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomInteger(0xFFFF_FFFF_0000, 0xFFFF_FFFF_FFFF) | ||
log(integerToHex(n, 8)) | ||
} | ||
log('\nrandomBytes(100)') | ||
log(await prng.randomBytes(100)) | ||
} | ||
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function integerToHex(integer, paddingByteSize = 4, grouping = 4) { | ||
let hex = integer.toString(16).toUpperCase() | ||
if (hex.length < paddingByteSize*2) | ||
hex = '0'.repeat((paddingByteSize*2) - hex.length) + hex | ||
if (grouping) { | ||
let result = '' | ||
if (hex.length % grouping) result += hex.slice(0, hex.length % grouping) + '_' | ||
for (let i=hex.length % grouping; i<hex.length; i+=grouping) { | ||
result += hex.slice(i, i+grouping) + '_' | ||
} | ||
hex = result.slice(0, -1) | ||
} | ||
return hex | ||
} |
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<!DOCTYPE html><meta charset="utf-8"> | ||
<!--script type="importmap" src="import_map.json"></script--> | ||
<script type="importmap"> | ||
{ | ||
"imports": { | ||
"pluggable-prng": "./node_modules/pluggable-prng/source/pluggablePrng.js" | ||
} | ||
} | ||
</script> | ||
<script type="module" src="example_2.js"></script> | ||
Check your console! :) |
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import {PluggablePRNG} from 'pluggable-prng' | ||
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const log = console.log | ||
const wideNumber = new Intl.NumberFormat('fullwide', {maximumSignificantDigits: 21}) | ||
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// A dummy generator | ||
function d(...values) { | ||
let i = 0 | ||
return new PluggablePRNG({ | ||
RandomGenerator: class { | ||
randomUint32() { | ||
if (i == 0) {i++; return 0} // init | ||
if (i == values.length) i = 0 | ||
return values[i++] >>> 0 | ||
} | ||
}, | ||
}) | ||
} | ||
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log('These functions are ran 3 times with this internal output from a dummy PRNG: [0, 0xFFFF_FFFF/2, 0xFFFF_FFFF]') | ||
log('randomInteger(-0xFFFF_FFFF, 0)') | ||
log(d(0).randomInteger(-0xFFFF_FFFF, 0)) | ||
log(d(0xFFFF_FFFF/2).randomInteger(-0xFFFF_FFFF, 0)) | ||
log(d(0xFFFF_FFFF).randomInteger(-0xFFFF_FFFF, 0)) | ||
log('randomInteger(0, 1)') | ||
log(d(0).randomInteger(0, 1)) | ||
log(d(0xFFFF_FFFF/2).randomInteger(0, 1)) | ||
log(d(0xFFFF_FFFF).randomInteger(0, 1)) | ||
log('randomInteger(-2147483648, 2147483647)') | ||
log(d(0).randomInteger(-2147483648, 2147483647)) | ||
log(d(0xFFFF_FFFF/2).randomInteger(-2147483648, 2147483647)) | ||
log(d(0xFFFF_FFFF).randomInteger(-2147483648, 2147483647)) | ||
log('randomFloat32/64(-0xFFFF_FFFF, 0)') | ||
log(wideNumber.format(d(0).randomFloat32(-0xFFFF_FFFF, 0))) | ||
log(wideNumber.format(d(0).randomFloat64(-0xFFFF_FFFF, 0))) | ||
log(wideNumber.format(d(0xFFFF_FFFF/2).randomFloat32(-0xFFFF_FFFF, 0))) | ||
log(wideNumber.format(d(0xFFFF_FFFF/2).randomFloat64(-0xFFFF_FFFF, 0))) | ||
log(wideNumber.format(d(0xFFFF_FFFF).randomFloat32(-0xFFFF_FFFF, 0))) | ||
log(wideNumber.format(d(0xFFFF_FFFF).randomFloat64(-0xFFFF_FFFF, 0))) | ||
log('randomFloat32/64()') | ||
log(wideNumber.format(d(0).randomFloat32())) | ||
log(wideNumber.format(d(0).randomFloat64())) | ||
log(wideNumber.format(d(0xFFFF_FFFF/2).randomFloat32())) | ||
log(wideNumber.format(d(0xFFFF_FFFF/2).randomFloat64())) | ||
log(wideNumber.format(d(0xFFFF_FFFF).randomFloat32())) | ||
log(wideNumber.format(d(0xFFFF_FFFF).randomFloat64())) | ||
log('randomFloat32/64(0, 1)') | ||
log(wideNumber.format(d(0).randomFloat32(0, 1))) | ||
log(wideNumber.format(d(0).randomFloat64(0, 1))) | ||
log(wideNumber.format(d(0xFFFF_FFFF/2).randomFloat32(0, 1))) | ||
log(wideNumber.format(d(0xFFFF_FFFF/2).randomFloat64(0, 1))) | ||
log(wideNumber.format(d(0xFFFF_FFFF).randomFloat32(0, 1))) | ||
log(wideNumber.format(d(0xFFFF_FFFF).randomFloat64(0, 1))) | ||
log('randomFloat32/64(1, 2)') | ||
log(wideNumber.format(d(0).randomFloat32(1, 2))) | ||
log(wideNumber.format(d(0).randomFloat64(1, 2))) | ||
log(wideNumber.format(d(0xFFFF_FFFF/2).randomFloat32(1, 2))) | ||
log(wideNumber.format(d(0xFFFF_FFFF/2).randomFloat64(1, 2))) | ||
log(wideNumber.format(d(0xFFFF_FFFF).randomFloat32(1, 2))) | ||
log(wideNumber.format(d(0xFFFF_FFFF).randomFloat64(1, 2))) | ||
log('randomBytes(4*3).reverse().buffer (ran with [0xCAFE_BABE, 0xFA51_F00D, 0xDEAD_BEEF])') | ||
log(d(0xCAFE_BABE, 0xFA51_F00D, 0xDEAD_BEEF).randomBytes(4*3).reverse().buffer) |
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<!DOCTYPE html><meta charset="utf-8"> | ||
<!--script type="importmap" src="import_map.json"></script--> | ||
<script type="importmap"> | ||
{ | ||
"imports": { | ||
"pluggable-prng": "./node_modules/pluggable-prng/source/pluggablePrng.js" | ||
} | ||
} | ||
</script> | ||
<script type="module" src="example_web_crypto.js"></script> | ||
Check your console! :) |
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import { | ||
PluggablePRNG, | ||
RandomGenerator_WebCrypto, SeedInitializer_WebCrypto | ||
} from 'pluggable-prng' | ||
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const log = console.log | ||
const wideNumber = new Intl.NumberFormat('fullwide', {maximumSignificantDigits: 21}) | ||
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if (globalThis.Deno?.version?.deno) { | ||
log('Deno doesn\'t support the Web Crypto API, at least not when I wrote this example...') | ||
} else { | ||
await prngDemoOutput(new PluggablePRNG({ | ||
seed: {seed: 0, salt: 'Data to secure the random generator output when a weak (as in short or easy to guess) seed is used.'}, | ||
RandomGenerator: RandomGenerator_WebCrypto, | ||
SeedInitializer: SeedInitializer_WebCrypto | ||
})) | ||
} | ||
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async function prngDemoOutput(prng, iterations=5) { | ||
await prng.readyPromise // if set | ||
log('\nrandomFloat32()') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomFloat32() | ||
log(wideNumber.format(n), n.toString(2)) | ||
} | ||
log('\nrandomFloat32(4)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomFloat32(4) | ||
log(wideNumber.format(n), n.toString(2)) | ||
} | ||
log('\nrandomFloat32(5,7)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomFloat32(5,7) | ||
log(wideNumber.format(n), n.toString(2)) | ||
} | ||
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log('\nrandomFloat64()') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomFloat64() | ||
log(wideNumber.format(n), n.toString(2)) | ||
} | ||
log('\nrandomFloat64(4)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomFloat64(4) | ||
log(wideNumber.format(n), n.toString(2)) | ||
} | ||
log('\nrandomFloat64(5,7)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomFloat64(5,7) | ||
log(wideNumber.format(n), n.toString(2)) | ||
} | ||
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log('\nrandomInteger(-0xFFFF_FFFF, 0xFFFF_FFFF)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomInteger(-0xFFFF_FFFF, 0xFFFF_FFFF) | ||
log(n) | ||
} | ||
log('\nrandomInteger(0, 4)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomInteger(0, 4) | ||
log(n) | ||
} | ||
log('\nrandomInteger(0, Number.MAX_SAFE_INTEGER)') | ||
log(integerToHex(2**53-1, 8), '== 53 bits all set (Number.MAX_SAFE_INTEGER)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomInteger(0, Number.MAX_SAFE_INTEGER) | ||
log(integerToHex(n, 8)) | ||
} | ||
log('\nrandomInteger(0, FF_FFFF_FFFF)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomInteger(0, 0xFF_FFFF_FFFF) | ||
log(integerToHex(n, 8)) | ||
} | ||
log('\nrandomInteger(FFFF_FFFF_0000, FFFF_FFFF_FFFF)') | ||
for (let i=0; i<iterations; i++) { | ||
let n = await prng.randomInteger(0xFFFF_FFFF_0000, 0xFFFF_FFFF_FFFF) | ||
log(integerToHex(n, 8)) | ||
} | ||
log('\nrandomBytes(100)') | ||
log(await prng.randomBytes(100)) | ||
} | ||
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function integerToHex(integer, paddingByteSize = 4, grouping = 4) { | ||
let hex = integer.toString(16).toUpperCase() | ||
if (hex.length < paddingByteSize*2) | ||
hex = '0'.repeat((paddingByteSize*2) - hex.length) + hex | ||
if (grouping) { | ||
let result = '' | ||
if (hex.length % grouping) result += hex.slice(0, hex.length % grouping) + '_' | ||
for (let i=hex.length % grouping; i<hex.length; i+=grouping) { | ||
result += hex.slice(i, i+grouping) + '_' | ||
} | ||
hex = result.slice(0, -1) | ||
} | ||
return hex | ||
} |
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{ | ||
"imports": { | ||
"pluggable-prng": "./node_modules/pluggable-prng/source/pluggablePrng.js", | ||
"crypto": "node:crypto" | ||
} | ||
} |
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