title: the every() method not returning correct value
body: <p>Can someone kindly tell me why this is returning true? It should return false because in the first iteration value[pre] === 0... Thanks.</p>
  
  <pre><code>function truthCheck(collection, pre) { 
     function check(value){
        if(value.hasOwnProperty(pre)){
           return value[pre] !== null || value[pre] !== undefined || value[pre] !== ""|| value[pre] !== 0; 
        }
     } 
     return collection.every(check);
  }    
  truthCheck([{"user": "Tinky-Winky", "sex": "male", "age": 0}, {"user": "Dipsy", "sex": "male", "age": 3}, {"user": "Laa-Laa", "sex": "female", "age": 5}, {"user": "Po", "sex": "female", "age": 4}], "age");
  </code></pre>