title: JS find multiple values in array
body: <p>I have an array which the values are : </p>
  
  <pre><code>1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26
  </code></pre>
  
  <p>then i want to check this <strong>values</strong> to the array : </p>
  
  <pre><code>14,15,16,17
  </code></pre>
  
  <p>i tried with this but didn't work :</p>
  
  <pre><code>function contains(a, toFind) {
      for (var i = 0; i &lt; a.length; i++) {
          if (equalArray(a[i], toFind)) {
              return true;
          }
      }
      return false;
  }
  
  function equalArray(a, b) {
      if (a.length === b.length) {
          for (var i = 0; i &lt; a.length; i++) {
              if (a[i] !== b[i]) {
                  return false;
              }
          }
          return true;
      } else {
          return false;
      }
  }
  </code></pre>
  
  <p>Anyone can help me out ? </p>