Used to run script on page to get results
The extension helps run java script on the page. The good point is that the extension is powered by jQuery version 1.10 which helps in debugging any html page you have currently opened up in the browser.
For using Jquery use $ext instead of $ to run your scripts.
For example if I want to find number of anchor tags on the page: I would write $ext('a').size() in the text area to get the number in result section below the execute button. Similarly try using window.location.href to get the current url in result section.
You can write multiple lines of script and execute to see the logs in console as do not use alerts in the script. To see logs in the console. Press F12 to open the chrome developer tool and then click on the console tab.
Logging in Script Area example:
try writing console.log('Your message') and click Execute button or alternative you can use the log method directly like log('My Message').
Try executing this script on any page.
This will result in printing every link text on the page in console.
Use It and play around with the html in your browser.
Happy Scripting !!!!