count-bits

It is helper for counting bits in numbers

Install

npm install count-bits --save

Usage

var countBits = require('count-bits');
countBits(15) === 4; // true, 15 === 1111
countBits(16) === 1; // true, 15 === 1000

Specialty

This package works much faster than analogs. Because it does not look for a substring in a string and does not use regular expressions.

Testing

npm test