function getValues() {
                                // get the user values (fizz and buzz) from form
                                let fizzValue = document.querySelector('#txtFizz').value;
                                let buzzValue = document.querySelector('#txtBuzz').value;
                            
                                // check for numbers
                                fizzValue = parseInt(fizzValue);
                                buzzValue = parseInt(buzzValue);
                            
                                // check that the numbers are integers
                                if (Number.isInteger(fizzValue) && Number.isInteger(buzzValue)) {
                                    // call fizzbuzz
                                    let fbArray = fizzBuzzC(fizzValue, buzzValue);
                            
                                    // call display and write values to screen
                                    displayData(fbArray);
                                } else {
                                    alert('You must enter integer values');
                                }
                            }
                            
                            // Using the If statement
                            function fizzBuzzA(fizzValue, buzzValue) {
                                let returnArray = [];
                            
                                for (let i = 1; i <= 100; i++) {
                                    // if divisible by both (fizz and buzz)
                                    // if divisible by just (fizz)
                                    // if divisible by just (buzz)
                                    if (i % fizzValue == 0 && i % buzzValue == 0) {
                                        returnArray.push('FizzBuzz');
                                    } else if (i % fizzValue == 0) {
                                        returnArray.push('Fizz');
                                    } else if (i % buzzValue == 0) {
                                        returnArray.push('Buzz');
                                    } else {
                                        returnArray.push(i);
                                    }
                                }
                            
                                return returnArray;
                            }
                            
                            // Using the Switch statement
                            function fizzBuzzB(fizzValue, buzzValue) {
                                let returnArray = [];
                                let Fizz = false;
                                let Buzz = false;
                            
                                for (let i = 1; i <= 100; i++) {
                                    Fizz = i % fizzValue == 0;
                                    Buzz = i % buzzValue == 0;
                            
                                    switch (true) {
                                        case Fizz && Buzz: {
                                            returnArray.push('FizzBuzz');
                                            break;
                                        }
                                        case Fizz: {
                                            returnArray.push('Fizz');
                                            break;
                                        }
                                        case Buzz: {
                                            returnArray.push('Buzz');
                                            break;
                                        }
                                        default: {
                                            returnArray.push(i);
                                            break;
                                        }
                                    }
                                }
                                return returnArray;
                            }
                            
                            // Using the Ternary statement
                            function fizzBuzzC(fizzValue, buzzValue) {
                                let returnArray = [];
                            
                                for (let i = 1; i <= 100; i++) {
                                    let value = (i % fizzValue == 0 ? 'Fizz' : '') + (i % buzzValue == 0 ? 'Buzz' : '') || i;
                                    returnArray.push(value);
                                }
                            
                                return returnArray;
                            }
                            
                            function displayData(fbArray) {
                                // get the table body element from the page
                                let tableBody = document.querySelector('#tableResults');
                            
                                // get the template row
                                let templateRow = document.querySelector('#fbTemplate');
                            
                                // clear table
                                tableBody.innerHTML = '';
                            
                                for (let i = 0; i < fbArray.length; i += 5) {
                                    let tableRow = document.importNode(templateRow.content, true);
                            
                                    //insert values into row (5 columns)
                                    let rowCols = tableRow.querySelectorAll('td');
                                    for (let col = 0; col <= 4; col++) {
                                        rowCols[col].textContent = fbArray[i + col];
                                        rowCols[col].classList.add(fbArray[i + col]);
                                    }
                            
                                    // add row to table
                                    tableBody.appendChild(tableRow);
                                }
                            }
                            
                        

The Code is structured in several functions.

getValues

Gets the user input and validates the values. Calls the functions to process the values.

fizzBuzzC

Creates an array of values based on user input ("Fizz" and "Buzz") and divisibility.
I used fuzzBuzzC (Ternary statment) for this program.

displayData

Displays the array of numbers in a 5 column table of rows with fizzbuzz values bolded and colored accordingly.