You can use the modulus operator (%), this will help make your code future proof, should the 20 need to change to 200 etc
for(var i = 1; i <= 20; i++){
if(i % 5 == 0 && i % 3 == 0) {
console.log("FizzBuzz");
} else if (i % 3 == 0) {
console.log("Fizz");
} else if (i % 5 == 0) {
console.log("Buzz");
} else {
console.log(i);
}
}
solved How can I improve this JavaScript code? [closed]