Wrong answer to "FizzBuzz" style code

The original question is:
What is the sum of all multiples of 3 and 5 from 1 to 1000?
I wrote this code to solve that.

<!-- begin snippet: js hide: true -->

<!-- language: lang-js -->

var array =[]; //Setting up the Array
for (i=0 ; i<1000 ; i++) {
if(i %3 === 0) {
array.push(i);
} else if (i%5 === 0) {
array.push(i);
} else{
};
}; //This is the main loop

var sum = array.reduce(function(a,b) {
return a+b;
}); //array reduce function to summate the array.

<!-- end snippet -->

Now This does return 467, but that does not seem to be the correct answer as you can see [here][1]
Also, I am new here and would like to know how the code snippet works, because i am not getting a return value at all.
Also, how do I indent my code here? tab doesn't work.
[1]:

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I don't think anything is wrong with your code - when I run it I get 233168 which seems right.

As for indenting your code, you have to use spaces. I usually indent in my text editor and then copy and paste in.

Finally for the code snippets I don't have much experience with them but I believe you need to log your answer to the console, not just return it.

var array =[]; //Setting up the Array
for (i=0 ; i<1000 ; i++) {
if(i %3 === 0) {
array.push(i);
} else if (i%5 === 0) {
array.push(i);
}
} //This is the main loop
var sum = array.reduce(function(a,b) {
sum = a+b;
return a+b;
}); //array reduce function to summate the array.
console.log(sum);