Javascript if/else statement using image src as condition
<p>I have a voting script with an arrow system (upvotes and downvotes).If user clicks upvote, the arrow changes to the green arrow, meaning vote registered. If they click again, I want the arrow to revert back to the original image. However, using my code, it changes the image on the first like, but doesn't revert back on a second click.</p>

<pre><code>if (like.src = 'vote_triangle.png') {
  like.src = 'vote_triangle_like.png';
} else {
  like.src = 'vote_triangle.png';
}
</code></pre>
