percentage-incrementor

Store the percentage of an incrementing subset against a total.

Installation

yarn add percentage-incrementor or npm i --save percentage-incrementor

Usage

const PercentageIncrementor = require('percentage-incrementor');
 
// Store the percentage of truthy values incremented.
const truthyPercent = new PercentageIncrementor(val => !!val);
 
// Starts at 0.
truthyPercent.valueOf();
// 0
 
truthyPercent.increment(false).valueOf();
// 0
 
truthyPercent.increment(true).valueOf();
// 0.5
 
truthyPercent.increment(true).valueOf();
// 0.666666666
 
// Use it as a primitive.
if (truthyPercent > 0.5) {
  console.log('yay!');
}
// yay!