CODEWITHSUNDEEP
jqueryexternal
J. Scott Elblein
J. Scott Elblein

Reputation: 4273

A better way to wait for external js to complete before executing jQuery code?

I've got some jQuery code that requires 2 external .js to complete loading before I can successfully do what I need to do, and $(document).ready isn't working consistently enough; sometimes it works, other times it gets overwritten by the external .js code.

Is there some way to ensure that the page is completely done loading, including all external .js before my jQuery executes?

Upvotes: 5

Views: 10960

Answers (2)

John
John

Reputation: 3916

It's impossible know what's a better way when we don't know anything about your project but, in general, it's good practice to do all your script loading right before the closing </body> tag. Then make sure you're jquery code is loaded after it's dependencies are.

<!DOCTYPE html>
<html lang="en">
  <head>
      <!-- your head stuff -->
  </head>
  <body>

    <!-- your page markup here -->

    <!-- load scripts here -->
    <script src="library_with_no_dependencies.js"></script>
    <script src="jquery.js"></script>
    <script src="library_with_dependency_on_jquery.js"></script>
    <script src="your_js_code.js"></script>

    <script>
      // or you could embed your js here
    </script>

  </body>
</html>

Just list them in the same order that you want them to load in. Using this method you don't need to use jquery's $(document).ready or window.onload, and your code will be executed much sooner than using either of those methods.

You don't want to wait for everything to load, just the libraries that your javascript code is dependent on.

Upvotes: 3

S&#233;bastien
S&#233;bastien

Reputation: 12139

$(document).ready only waits for the DOM to be loaded. To wait until all resources in the page (including images, objects, scripts...) have been (down)loaded you can use window.onload:

window.onload = function () {
  // do stuff
};

Additionally you should read: window.onload vs $(document).ready()

Upvotes: 9

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