1function fizzBuzz2(n) {
2  for (let i = 1; i <= n; i++) {
3    let str = "";
4
5    if (i % 3 === 0) str += "fizz"
6    if (i % 5 === 0) str += "buzz"
7    if (str === "") str = i;
8  
9    console.log(str);
10  }
11}
12

1for (i=1; i<=100; i++) {
2    console.log((i%3==0&&i%5==0)?"FizzBuzz":(i%3==0)?"Fizz" : (i%5==0)?"Buzz" : i);
3}
4

1var output = [];
2var count = 1;
3
4function fizzBuzz(){
5
6  if (count % 3 === 0 && count % 5 === 0){
7    output.push("fizzBuzz");
8
9  } else if (count % 3 === 0) {
10    output.push("fizz");
11
12  } else if (count % 5 === 0) {
13    output.push("Buzz");
14  }
15  else {
16    output.push(count);
17  }
18  count++;
19}
20console.log(output);

1function fizzbuzz(maxNum){
2        for(i=1;i<=maxNum;i++){
3                result = '';
4                if(i%3===0)(result+='fizz');
5                if(i%5===0)(result+='buzz');
6                if(result==''){
7                        console.log(i);
8                }else{
9                        console.log(result)
10                }
11        }
12}
13
14fizzbuzz(100);

1// This is the most compact one I could make
2
3for (let i = 1; i < 101; i++) console.log((i % 3 ? "" : "fizz") + (i % 5 ? "" : "buzz"));