The Code for Taco Cat

                        
                            // Sep One - controller/accepts requests
                            function getMessage() {
                                let msg = document.getElementById("txtMessage").value;
                            
                                // Check for empty string
                                if (msg == '') {
                                    alert("You must enter a string!");
                                } else {
                                    msg = msg.toUpperCase();
                                    const regex = /[^a-z0-9]/gi;
                                    msg = msg.replace(regex, "");
                                    let palinObj = reverseMessageC(msg);
                                    displayMessage(palinObj);
                                }
                            }
                            
                            // Business Logic Layer
                            function reverseMessageA(msg) {
                                let revMessage = "";
                                // Decrimenting loop
                                for (let index = msg.length - 1; index >= 0; index--) {
                                    let char = msg[index];
                                    revMessage += char;
                                }
                                if (msg == revMessage) {
                                    alert("This is a palindrome!")
                                } else {
                                    alert("This is not a palindrome...")
                                }
                                return revMessage;
                            }
                            
                            function reverseMessageB(msg) {
                                msg = msg.toLowerCase().replace(/[^a-z]+/g, "");
                                return msg === msg.split("").reverse().join("")
                            }
                            
                            function reverseMessageC(originalWord) {
                                let revWord = "";
                                let returnObj = {};
                                revWord = originalWord.split("").reverse().join("");
                            
                            if (originalWord == revWord) {
                                returnObj.message = `This is a palindrome!`;
                                returnObj.IsPalindrome = true;
                            } else {
                                returnObj.message = `This is not a palindrome...`;
                                returnObj.IsPalindrome = false;
                            }
                            
                            returnObj.originalWord = originalWord;
                            returnObj.reversedWord = revWord;
                            
                            // IsPalindrome
                            // originalWord
                            // reversedWord
                            // message
                            return returnObj;
                            }
                            
                            // Final Step - View
                            function displayMessage(palinObj) {
                                element = document.getElementById("results");
                                element.innerHTML = `${palinObj.message} - ${palinObj.originalWord}`;
                            }
                        
                    

The code is structured in two functions:

getMessage

Gets a string from the user

displayMessage

Displays if the string is a palindrome