FizzBuzz example in JavaScript -

FizzBuzz example in JavaScript -

working through js examples , wrote solution fizzbuzz question. prints 1..20 , str never gets concat() value. can please explain why doesn't work?

for(i=1; i<=20; i++){ var str = '' if(i%3===0){ str.concat('fizz') } if(i%5===0){ str.concat('buzz') } if(str===''){ console.log(i) } else { console.log(str) } }

update: since above question simple syntax error (don't want start new thread), was wondering if next way write above reply succinctly in js?

for(i=1; i<=20; i++){ var str = '' i%3===0 ? str = str.concat('fizz') : false i%5===0 ? str = str.concat('buzz') : false str==='' ? console.log(i) : console.log(str) }

because string.prototype.concat() returns contatenated string.

you need str = str.concat("xyz");

javascript