BitSet
This module implements an array of bits, that grows as needed. It can be used from both JavaScript as well as CoffeeScript.
var bs = new BitSet();
_(12).times(function(n){
bs.set(n);
});
console.dir(bs);
Mind you: The example uses underscore.js
Usage
This is very useful for realtime metrics with for example Redis.
Installation
npm install bitset
Performance
It performs pretty well, you can try the performance.js in the support folder. This is the output with 100.000.000 bits:
set 100000000 bits: 3173ms
cardinality 100000000
cardinality: 949ms
Tests
Testing is done via the excellent mocha (cake test)