arrays - Why doesn't my javascript work? -

i'm trying create javascript count 1 1000 , push multiples of 3, 5 array called multiples print array out using console.log(). reason code isn't working. know why?

var n;  var multiples = [];  for(n = 1; n <= 1000; n += 1) {     console.log("counting"); }  if(n % 3 === 0) {      n.push(multiples); } else { }  if(n % 5 === 0) {     n.push(multiples); } else { }  if(n >= 1000) {     console.log(multiples); } else { } 

there few issues code. using {} in block designates scope of code executing in each iteration. in order access each value n need placing conditional statements inside of {} , not outside of them.

there slight syntax error multiples array. in order push value array use arrayname followed dot operator , push function argument being value pushed. in terms of multiples , n, means multiples.push(n).

when using if() block, else not required.

it best practice include variable declaration inside of loops, , use ++ opposed += 1.

overall, code need more this

var multiples = [];  console.log("counting"); for(var n = 1; n <= 1000; n++) {     if(n % 3 === 0) {          multiples.push(n);     }     if(n % 5 === 0) {         multiples.push(n);    } } console.log(multiples);