This is a sample NPM module created in Learn Enough JavaScript to Be Dangerous by Michael Hartl.
The module can be used as follows:
$ npm install --global iversonc-palindrome $ vim test.js let Phrase = require("iversonc-palindrome"); let napoleonsLament = new Phrase("Able was I, ere I saw Elba."); console.log(napoleonsLament.palindrome()); $ node test.js true