FizzBuzz without conditional / boolean operators / trycatch / etc

fizzbuzz.js

function fizzBuzz(from, to) {
    function print() {
        var text =
            'Fizz,,'.split(',')[from%3] +
            'Buzz,,,,'.split(',')[from%5]
        
        var _ = {}
        
        _[text] = ''
        _[''] = from
        
        console.log(
            from, ' -> ', text + _[text]
        )
    }
    
    function next() {
        var _ = {}
        
        _[from] = loop
        _[to] = function() {}   
        
        _[from++]()  
    }
    
    function loop() {
        print()
        next()
    }    
    
    loop()
}
 
fizzBuzz(1, 20)

/*
1 -> 1
2 -> 2
3 -> Fizz
4 -> 4
5 -> Buzz
6 -> Fizz
7 -> 7
8 -> 8
9 -> Fizz
10 -> Buzz
11 -> 11
12 -> Fizz
13 -> 13
14 -> 14
15 -> FizzBuzz
16 -> 16
17 -> 17
18 -> Fizz
19 -> 19
20 -> Buzz
*/