how to count up to a specific number in javascript, fizzbuzz -

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i'm trying solve problem similar popular fizzbuzz or pingpong question. figured out how write portion of code, need make counter in user inputs number , page gives 1 number input, fizzbuzz/popcorn numbers. think code along lines of 

for (i = 1; <= 20; i++) {...}

but don't know how combine other code 

var pingpong = function(number) {  if (number % 15 === 0) {    return 'pingpong';  } else if (number % 5 === 0) {    return 'pong';  } else if (number % 3 === 0) {    return 'ping';  } else {   return false;  } };

sorry, know super beginner question, i'm starting out , having hard time figuring out how works together.

you close. read more javascripts loops.

var pingpong = function(number) {   if (number % 15 === 0) {     return 'pingpong';   } else if (number % 5 === 0) {     return 'pong';   } else if (number % 3 === 0) {     return 'ping';   } else {    return false;   }  };    (var = 1; <= 20; i++) {    var num = pingpong(i);    // show on screen    document.body.innerhtml += + ': ' + num + '<br />';  }


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