JCH - Jump Consistent Hash Library for Javascript in Deno.

A Fast, Minimal Memory, Consistent Hash Algorithm.

We present jump consistent hash, a fast, minimal memory, consistent hash algorithm that can be expressed in about 5 lines of code. In comparison to the algorithm of Karger et al., jump consistent hash requires no storage, is faster, and does a better job of evenly dividing the key space among the buckets and of evenly dividing the workload when the number of buckets changes. Its main limitation is that the buckets must be numbered sequentially, which makes it more suitable for data storage applications than for distributed web caching.

Paper: https://arxiv.org/abs/1406.2294

Usage

const a = ch(286293355577, 500000) // support TS type Number. Since all JS numbers are 64 bits floating number.
const b = ch("127.0.0.1", 1073741824) // currently not support type String yet. Maybe can port outputs to crc32 or bkdr in the future.

or check example code located at ./ex/01.ts.