@flesch/net-promoter-score 📈 Calculate a “Net Promoter Score” from an array of integers. Install $ npm install --save @flesch/net-promoter-score Usage const nps = require('@flesch/net-promoter-score'); const score = nps([10, 9, 10, 8, 7, 5, 6, 9, 10]); console.log(score); // => 33