knuth-shuffle-seeded
Advanced tools
The Fisher-Yates (aka Knuth) shuffle for Node.js, with seeding support
The knuth-shuffle-seeded npm package provides a seeded implementation of the Knuth (or Fisher-Yates) shuffle algorithm. This allows for reproducible shuffling of arrays, which can be useful in scenarios where deterministic results are needed, such as in testing or simulations.
Seeded Shuffle
This feature allows you to shuffle an array in a reproducible manner using a seed. The same seed will always produce the same shuffled array.
const shuffle = require('knuth-shuffle-seeded');
const seed = 'my-seed';
let array = [1, 2, 3, 4, 5];
shuffle(array, seed);
console.log(array);The seedrandom package provides a seeded random number generator. While it does not directly shuffle arrays, it can be used in conjunction with custom shuffle algorithms to achieve similar functionality. It offers more control over random number generation compared to knuth-shuffle-seeded.
The shuffle-seed package provides a similar functionality to knuth-shuffle-seeded by allowing arrays to be shuffled in a reproducible manner using a seed. It offers a simple API for shuffling and unshuffling arrays based on a seed.
The lodash.shuffle package is part of the Lodash library and provides a method to shuffle arrays. While it does not support seeding, it is widely used and well-documented, making it a popular choice for general-purpose shuffling.
The Fisher-Yates (aka Knuth) shuffle for the browser and Node.js, with seeds support using seed-random.
This project is initially forked from coolaj86/knuth-shuffle, but is extended so that it is possible to specify a seed to use in the shuffling, to ensure test reproducability.
Online demo: https://timothygu.github.io/knuth-shuffle-seeded/
Installing:
npm install knuth-shuffle-seeded
Put browser.js into your directory for JavaScripts. Then take a look at index.html.
You can also visit the page at https://timothygu.github.io/knuth-shuffle-seeded/.
shuffle(inputArray[, seed])
See example.js for more examples.
I have considered that, but the introduction of an npm dependency makes it necessary to use Browserify to generate a browser-compatible JavaScript file, which is too far away from the simple approach of knuth-shuffle.
Copyright 2013 AJ O'Neal
Copyright 2015 Tiancheng "Timothy" Gu
Licensed under the Apache License, Version 2.0 (the "License"); you may not use this project except in compliance with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.
1.0.6: 2015-01-30
FAQs
The Fisher-Yates (aka Knuth) shuffle for Node.js, with seeding support
The npm package knuth-shuffle-seeded receives a total of 808,319 weekly downloads. As such, knuth-shuffle-seeded popularity was classified as popular.
We found that knuth-shuffle-seeded demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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