title: Javascript syntax error when finding multiples of 3 and 5 under 1000
body: <pre><code>function multiple(){
    var arr=[]
    for (var i =0; i&lt;1000;i++){
      (i%3==0 || i%5==0) : arr.push(i) ? continue
    }
    return arr.reduce(function(sum,i){sum+=i;return sum})
  }
  console.log(multiple())
  </code></pre>
  
  <p>error:</p>
  
  <pre><code>(i%3==0 || i%5==0) : arr.push(i) ? continue
                       ^
  SyntaxError: Unexpected token :
  </code></pre>