What is the best way to prioritize loading a JS file and executing JavaScript before any other scripts and files?

I am experiencing an issue with my colorbox.js file and JavaScript code. The current setup is as follows:


echo '<script src="js/jquery.colorbox.js"></script>
         <script type="text/javascript" language="javascript">
         $(document).ready(function(){

         $("#iframe").colorbox({iframe:true, width: "830", height: "620"});
      });

    </script>';
echo '<a href="prices.php" id="iframe">see the pricelist</a>';

Whenever I click on a link, it opens as an iframe popup through colorbox. However, if I click on it before the page is fully loaded, it opens as a normal link in a new page instead of popping up as an iframe. My question is how can I ensure that the colorbox script loads first priority, before any other JavaScript files, to prevent it from opening as a normal page?

Thank you.
javascriptload

Answer №1

By positioning the colorbox's tag prior to your custom tag, Colorbox should have been initialized before your script runs. Utilizing document.ready() will guarantee that all DOM elements are ready for manipulation before your code is executed.

Could you kindly provide a JS Fiddle showcasing the problem you are experiencing?

Answer №2

Running a function in the head tag allows it to execute immediately, before the DOM is fully parsed. To achieve this, you can use document.ready

If you need a block of code to run both within the $(document).ready() function and earlier, define a function outside of $(document).ready() and call it early, then also include it within $(document).ready().

// Define this in a globally accessible scope (not inside document.ready()).
function yourFunc() {
   // Your code goes here
}

$(document.ready(function() {
    yourFunc();
});

You can place this function in the head section after including the jQuery library, as jQuery is required to execute your iframe code.

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