Skip to content
Advertisement

Include jQuery in the JavaScript Console

Is there an easy way to include jQuery in the Chrome JavaScript console for sites that do not use it? For example, on a website I would like to get the number of rows in a table. I know this is really easy with jQuery.

$('element').length;

The site does not use jQuery. Can I add it in from the command line?

Advertisement

Answer

Run this in your browser’s JavaScript console, then jQuery should be available…

var jq = document.createElement('script');
jq.src = "https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js";
document.getElementsByTagName('head')[0].appendChild(jq);
// ... give time for script to load, then type (or see below for non wait option)
jQuery.noConflict();

NOTE: if the site has scripts that conflict with jQuery (other libs, etc.) you could still run into problems.

Update:

Making the best better, creating a Bookmark makes it really convenient, let’s do it, and a little feedback is great too:

  1. Right click the Bookmarks Bar, and click Add Page
  2. Name it as you like, e.g. Inject jQuery, and use the following line for URL:

javascript:(function(e,s){e.src=s;e.onload=function(){jQuery.noConflict();console.log(‘jQuery injected’)};document.head.appendChild(e);})(document.createElement(‘script’),’//code.jquery.com/jquery-latest.min.js’)

Below is the formatted code:

javascript: (function(e, s) {
    e.src = s;
    e.onload = function() {
        jQuery.noConflict();
        console.log('jQuery injected');
    };
    document.head.appendChild(e);
})(document.createElement('script'), '//code.jquery.com/jquery-latest.min.js')

Here the official jQuery CDN URL is used, feel free to use your own CDN/version.

Advertisement