Replace part of an HREF attribute in a link with jQuery

Question

I'm new to jQuery and I need to replace a part of an A HREF attribute in a link. More specifically, a piece of code that will remove the "-h" from "s1600-h" for a lightbox application:

In other words, turn s1600-h to s1600

Also, do I need to use $(function() or $(document).ready(function() before the piece of code?

Answer 1

$(document).ready(function(){
    $('a').each(function(){
        this.href = this.href.replace('s1600-h', 's1600');
    });
});

Answer 2

jQuery(document).ready(function() {
  jQuery('a').each(function(){
     this.href = this.href.replace('s1600-h', 's1600');
  }); 
});