// Get the string from the page
                        function getValue() {
                            document.getElementById("alert").classList.add("invisible");
                            let userString = document.getElementById("userString").value;
                            let revString = resverseString(userString);
                            displayString(revString)
                        }

                        // Reverse the String object
                        function reverseString(userString){
                            let revString = [];
                            // reverse string
                            for (let i = userString.length - 1; i >= 0; i--) {
                                revString += userString[i];        
                            }
                            return revString;
                        }

                        // Display results
                        function displayString(reverseString){
                            // Write message to page
                            document.getElementById("message").innerHTML = `Your string reversed is: ${reverseString}`
                            // Show alert box
                            document.getElementById("alert").classList.remove("invisible");
                        }
                    
                    

The Code is structered into three functions.

getValue

getValue accepts(gets) the user input from the page. It utilizes getElementById to pull the vallues from the page. It passes those values to the reverseString function. The fuction reverseString returns the reversed string and passes that to the displayString function.

reverseString

reverseString takes in one parameter, userString. We create a variable (revString) that holds an array. Then a For loop is used to iterate through userString backwards then return the results.

displayString

displayString takes in one parameter, the reversed string. It then removes the class invisible and displays the alert box housing the reversed string.