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