My blind attempt at a compact script for the FizzBuzz game.

fizzbuzz.js

for(i=1;i<101;i++)
    o =i%3?'':'Fizz',
    o+=i%5?'':'Buzz',
    console.log(o||i)

Update… I recently did some googling to see if I could find anything shorter, and yeah, there is. A Medium Article titled Breaking Down The Shortest Possible FizzBuzz Answer examines the following code:

for(i=0;i<100;)console.log((++i%3?'':'fizz')+(i%5?'':'buzz')||i)

This actually looks a lot like my blind attempt, but it does a couple of smart things;
Remove i++ from the for-compound, and instead increment i before the first ternary-if, saving a single "i".
The other (fairly obvious) improvement is just omitting the output variable and placing any potential output-logic as a console.log argument. The solution is 64 bytes.

At this point I'm beaten. The room for improvement is so tiny that revisions of my solution simply become a carbon copy of the above line.

Maybe I'll try to find a new radical approach, the fight continues…