Fizz Buzz

FizzBuzz.js

// normal, static, somewhat-easy to maintain
for(let i=0;i<=100;i++) {
	var str ="";
	if(Number.isInteger(i/3)) str+="Fizz";
	if(Number.isInteger(i/5)) str+="Buzz";
	if(!str) str = i;
	console.log(str);
}

// advanced, dynamic, easy to maintain
var o = ["div3","div5","div7","div9"], num = [3,5,7,9];
for(let i=0;i<=100;i++) {
	var str ="";
	for(let key in num) if(Number.isInteger(i/num[key])) str+=o[key];
	if(!str) str = i;
	console.log(str);
}

// naive method, static, can become hard to maintain
for(let i=0;i<=100;i++) {
    if(i % 3 === 0 && i % 5 === 0) console.log("FizzBuzz");
    if(i % 3 === 0 && i % 5 !== 0) console.log("Fizz");
    if(i % 3 !== 0 && i % 5 === 0) console.log("Buzz");
    if(i % 3 !== 0 && i % 5 !== 0) console.log(i);
}

pretty epic