Question

Would it be better to use the method reddit uses when placing a vote by using <a onclick="vote('4')"> or should I just add a class selector like <a class='vote-up' id='4'> or is the difference negligible?

Answer 1

If you only use a class, you will still need to use JavaScript to attach an event handler to process the vote.

So you don’t need to put the onclick into the markup, but you will need to assign the click property to everything with the class:

// Assuming you have your `vote()` function already
$("a.vote-up").click(function() {
  vote(this.id);
});

This can be done in $(document).ready(), or using .on() to attach to newly created elements as well.