bundle.js

(function(){function r(e,n,t){function o(i,f){if(!n[i]){if(!e[i]){var c="function"==typeof require&&require;if(!f&&c)return c(i,!0);if(u)return u(i,!0);var a=new Error("Cannot find module '"+i+"'");throw a.code="MODULE_NOT_FOUND",a}var p=n[i]={exports:{}};e[i][0].call(p.exports,function(r){var n=e[i][1][r];return o(n||r)},p,p.exports,r,e,n,t)}return n[i].exports}for(var u="function"==typeof require&&require,i=0;i<t.length;i++)o(t[i]);return o}return r})()({1:[function(require,module,exports){
module.exports = Phrase;

// Add `reverse` to all strings.
String.prototype.reverse = function reverse() {
  return Array.from(this).reverse().join("");
}

 // Defines a Phrase object.
function Phrase(content) {
  this.content = content;

  // Process contnt for palindrome testing.
  this.processor = function processor(string) {
    return string.toLowerCase();
  }

  // Returns content processed for palindrome testing.
  this.processedContent = function processedContent() {
    return this.processor(this.letters());
  }

  // Returns the letters in the content.
  this.letters = function letters() {
    return (this.content.match(/[a-z]/ig) || []).join("");
  }

  // Returns true for a palindrome, false otherwise.
  this.palindrome = function palindrome() {
    if (this.letters()) {
      return this.processedContent() === this.processedContent().reverse();
    } else {
      return false
    }
  }

  // Returns the phrase LOUDER.
  this.louder = function louder() {
    return this.content.toUpperCase();
  }
}

},{}],2:[function(require,module,exports){
let Phrase = require("brugs-palindrome");

function palindromeTester(event) {
  event.preventDefault();
  let phrase = new Phrase(event.target.phrase.value);
  let palindromeResult = document.querySelector("#palindromeResult");
  if (phrase.palindrome()) {
    palindromeResult.innerHTML = `"${phrase.content}" is a palindrome!`;
  } else {
    palindromeResult.innerHTML = `"${phrase.content}" is not a palindrome!`;
  }
}

document.addEventListener("DOMContentLoaded", function() {
  let form = document.querySelector("#palindromeTester");
  form.addEventListener("submit", function() {
    palindromeTester(event);
  });
});

},{"brugs-palindrome":1}]},{},[2]);