If statement issue enter : <p>I have this JS var, followed by this if statement : </p>

<pre><code>if ($('custom_t4'))
                var contratType = $('custom_t4').value === 'Nouvelle_affaire' ? 'Nouvelle Affaire' : $('custom_t4').value === 'Avenant' ? 'Avenant' : '';



if (contratType &amp;&amp; (contratType !== 'Nouvelle Affaire' || contratType !== 'Avenant')){ }
</code></pre>

<p>The problem I have, is that when contratType is defined and his value is 'Nouvelle Affaire', is still enter that if. </p>

<p>Did I miss something ?</p>
