multikey-hash

multikey-hash

hash together multiple objects of any type*

Arguments are serialized and then hashed together using the MurmurHash3 algorithm for efficient memory usage (small sized hashes), speed and random distribution.

If you're looking for a full hashmap implementation check out dependent module superhash

Installation

$ npm install multikey-hash

Example

var mkhash = require('multikey-hash');
mkhash(5, 'afuh08h3sfasfs40n340unfe0ruhn0unerf0u', function test(){console.log(test);});
// 3717699652 <-- generated hash

Caveat

Any non primitive keys are tokenized, not serialized. This is done for great speed and space efficiencies. Aside from the performance benefits, this also means that the generated hash is only useful within the same process. Any hash generated in one process will not be consistent with a hash generated by the same non-primitive keys in another process. In other words: don't persist the hash for later use.

FAQ

What types of keys can be used?

Any primitive or mutable object can be used as a key.