Permutation Packages

Bit twiddling hacks for JavaScript

Computes the parity of a permutation

Ranks and unranks permutations

Inverts permutations

Simple combinatorics like power set, combination, and permutation in JavaScript

Computes the cartesian product of arrays provided by an array or an object

Efficient Combinatorics library for JavaScript using ES2015 generator functions. Generate power set, combination, and permutation.

Lightweight transducer implementations for ES6 / TypeScript

Shuffle the words in a string and optionally the letters in each word using the Fisher-Yates algorithm. Useful for creating test fixtures, benchmarking samples, etc.

Picks an arbitrary permutation.

Picks an arbitrary permutation.

Picks an arbitrary permutation.

Picks an arbitrary permutation.

Checks if array has a permutation.

Checks if array has a permutation.

permutation utils

Random numbers and Distributions generation

Checks if array has a permutation.

Checks if array has a permutation.

Shuffles array elements in place.