title: If(tosString.call(input)!=="[object Array]" can't understand this
body: <p>I can't understand the if statement  and what it is saying and why there is no else statement</p>
  
  <pre><code>function max(input) {
           if (toString.call(input) !== "[object Array]")  
             return false;
        return Math.max.apply(null, input);
          }
  
      console.log(max([12,34,56,1]));
      console.log(max([-12,-34,0,-56,-1]))
  
  ;
  </code></pre>